1652. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: Edward Dunster. 15 May 1968.
1653. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: Edward Dunster. 15 May 1968.
1654. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: Edward Dunster. 15 May 1968.
1655. Vertical #20 net tow. Sta. E-5, 44°25'30" N; 87°10'18" W. Michigan. Coll: Edward Dunster. 15 May 1968.
1656. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Michigan. Coll: Edward Dunster. 15 May 1968.
1657. Vertical #20 net tow. Sta. A-l, 42°06'30" N; 86°32'00" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1658. Vertical #20 net tow. Sta. A-2, 42°06'00" N; 86°37'00" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1659. Vertical #20 net tow. Sta. A-3, 42°05'30" N; 86°43'00" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1660. Vertical #20 net tow. Sta. A-4, 42°03'30" N; 87°06'30" W. Michigan. Coll: Edward Dunster. 16 July 1968.
1661. Vertical #20 net tow. Sta. A-5, 41°57'00" N; 87°18'30" W. Michigan. Coll: Edward Dunster. 16 July 1968.
1662. Vertical #20 net tow. Sta. A-6, 41°52'00" N; 87°27'00" W. Michigan. Coll: Edward Dunster. 16 July 1968.
1663. Vertical #20 net tow. Sta. C-l, 42°49'40" N; 86°14'50" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1664. Vertical #20 net tow. Sta. C-2, 42°49'40" N; 86°18'25" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1665. Vertical #20 net tow. Sta. C-3, 42°49'10" N; 86°28'25" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1666. Vertical #20 net tow. Sta. C-4, 42°48'50" N: 86°41'30" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1667. Vertical #20 net tow. Sta. C-5, 42°49'00" N; 86°50'00" W. Michigan. Coll: Edward Dunster. 15 July 1968.
1668. Vertical #20 net tow. Sta. C-6, 42°47'50" N; 87°26'50" W. Michigan. Coll: Edward Dunster. 16 July 1968.
1669. Vertical #20 net tow. Sta. C-7, 42°47'30" N; 87°34'30" W. Michigan. Coll: Edward Dunster. 16 July 1968.
1670. Vertical #20 net tow. Sta. E-l, 44°37'30" N; 86°18'12" W. Michigan. Coll: Edward Dunster. 18 July 1968.
1671. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: Edward Dunster. 18 July 1968.
1672. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: Edward Dunster. 17 July 1968.
1673. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: Edward Dunster. 17 July 1968.
1674. Vertical #20 net tow. Sta. E-5, 44°25'30" N; 87°10'18" W. Michigan. Coll: Edward Dunster. 17 July 1968.
1675. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Michigan. Coll: Edward Dunster. 17 July 1968.
1676. Vertical #20 net tow. Sta. A-l, 42°06'30" N; 86°32'00" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1677. Vertical #20 net tow. Sta. A-2, 42°06'00" N; 86°37'00" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1678. Vertical #20 net tow. Sta. A-3, 42°05'30" N; 86°43'00" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1679. Vertical #20 net tow. Sta. A-4, 42°03'30" N; 87°06'30" W. Michigan. Coll: Edward Dunster. 7 August 1968.
1680. Vertical #20 net tow. Sta. A-5, 41°57'00" N; 87°18'30" W. Michigan. Coll: Edward Dunster. 7 August 1968.
1681. Vertical #20 net tow. Sta. A-6, 41°52'00" N; 87°27'00" W. Michigan. Coll: Edward Dunster. 7 August 1968.
1682. Vertical #20 net tow. Sta. C-l, 42°49'40" N; 86°14'50" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1683. Vertical #20 net tow. Sta. C-2, 42°49'40" N; 86°18'25" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1684. Vertical #20 net tow. Sta. C-3, 42°49'10" N; 86°28'25" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1685. Vertical #20 net tow. Sta. C-4, 42°48'50" N; 86°41'30" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1686. Vertical #20 net tow. Sta. C-5, 42°49'00" N; 86°50'00" W. Michigan. Coll: Edward Dunster. 6 August 1968.
1687. Vertical #20 net tow. Sta. C-6, 42°47'40" N; 87°26'50" W. Michigan. Coll: Edward Dunster. 8 August 1968.
1688. Vertical #20 net tow. Sta. C-7, 42°47'30" N; 87°34'30" W. Michigan. Coll: Edward Dunster. 8 August 1968.
1689. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: Edward Dunster. 9 August 1968.
1690. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: Edward Dunster. 9 August 1968.
1691. Vertical #20 net tow. Sta. E-5, 44°25'30" N; 87°10'18" W. Michigan. Coll: Edward Dunster. 9 August 1968.
1692. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Michigan. Coll: Edward Dunster. 9 August 1968.
1693. Vertical #20 net tow. Sta. A-l, 42°06'30" N; 86°32'00" W. Michigan. Coll: Edward Dunster. 12 September 1968.
1694. Vertical #20 net tow. Sta. A-2, 42°06'00" N; 86°37'00" W. Michigan. Coll: Edward Dunster. 12 September 1968.
1695. Vertical #20 net tow. Sta. A-3, 42°05'30" N; 86°43'00" W. Michigan. Coll: Edward Dunster. 12 Septernber 1968.
1696. Vertical #20 net tow. Sta. A-4, 42°03'30" N; 87°06'30" W. Michigan. Coll: Edward Dunster. 13 September 1968.
1697. Vertical #20 net tow. Sta. A-5, 41°57'00" N; 87°18'30" W. Michigan. Coll: Edward Dunster. 13 September 1968.
1698. Vertical #20 net tow. Sta. A-6, 41°52'00" N; 87°27'00" W. Michigan. Coll: Edward Dunster. 13 September 1968.
1699. Vertical #20 net tow. Sta. C-l, 42°49'40" N; 86°14'50" W. Michigan. Coll: Edward Dunster. 11 September 1968.
1700. Vertical #20 net tow. Sta. C-2, 42°49'40" N; 86°18'25" W. Michigan. Coll: Edward Dunster. 11 September 1968.
1701. Vertical #20 net tow. Sta. C-3, 42°49'10" N; 86°28'25" W. Michigan. Coll: Edward Dunster. 12 September 1968.
1702. Vertical #20 net tow. Sta. C-4, 42°48'50" N; 86°41'30" W. Michigan. Coll: Edward Dunster. 12 September 1968.
1703. Vertical #20 net tow. Sta. C-5, 42°49'00" N; 86°50'00" W. Michigan. Coll: Edward Dunster. 12 September 1968.
1704. Vertical #20 net tow. Sta. C-6, 42°47'40" N; 87°26'50" W. Michigan. Coll: Edward Dunster. 13 September 1968.
1705. Vertical #20 net tow. Sta. C-7, 42°47'30" N; 87°34'30" W. Michigan. Coll: Edward Dunster. 13 September 1968.
1706. Vertical #20 net tow. Sta. E-l, 44°37'30" N; 86°18'12" W. Michigan. Coll: Edward Dunster. 14 September 1968.
1707. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: Edward Dunster. 14 September 1968.
1708. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: Edward Dunster. 14 September 1968.
1709. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: Edward Dunster. 14 September 1968.
1710. Vertical #20 net tow. Sta. E-5, 44°25'30" N; 87°10'18" W. Michigan. Coll: Edward Dunster. 14 September 1968.
1711. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Lake Michigan. Coll: Edward Dunster. 14 September 1968.
1712. Vertical #20 net tow. Sta. A-l, 42°06'30" N; 86°32'00" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1713. Vertical #20 net tow. Sta. A-2, 42°06'00" N; 86°37'00" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1714. Vertical #20 net tow. Sta. A-3, 42°05'30" N; 86°43'00" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1715. Vertical #20 net tow. Sta. A-4, 42°03'30" N; 87°06'30" W. Michigan. Coll: E. F. Stoermer. 8 October 1968.
1716. Vertical #20 net tow. Sta. A-5, 41°57'00" N; 87°18'30" W. Michigan. Coll: E. F. Stoermer. 8 October 1968.
1717. Vertical #20 net tow. Sta. A-6, 41°52'00" N; 87°27'00" W. Michigan. Coll: E. F. Stoermer. 8 October 1968.
1718. Vertical #20 net tow. Sta. C-l, 42°49'40" N; 86°14'50" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1719. Vertical #20 net tow. Sta. C-2, 42°49'40" N; 86°18'25" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1720. Vertical #20 net tow. Sta. C-3, 42°49'10" N; 86°28'25" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1721. Vertical #20 net tow. Sta. C-4, 42°48'50" N; 86°41'30" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1722. Vertical #20 net tow. Sta. C-5, 42°49'00" N; 86°50'00" W. Michigan. Coll: E. F. Stoermer. 7 October 1968.
1723. Vertical #20 net tow. Sta. C-6, 42°47'40" N; 87°26'50" W. Michigan. Coll: E. F. Stoermer. 8 October 1968.
1724. Vertical #20 net tow. Sta. C-7, 42°47'30" N; 87°34'30" W. Michigan. Coll: E. F. Stoermer. 8 October 1968.
1725. Vertical #20 net tow. Sta. E-l, 44°37'30" N; 86°18'12° W. Michigan. Coll: E. F. Stoermer. 11 October 1968.
1726. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: E. F. Stoermer. 11 October 1968.
1727. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: E. F. Stoermer. 11 October 1968.
1728. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: E. F. Stoermer. 11 October 1968.
1729. Vertical #20 net tow. Sta. E-5, 44°25'30" N; 87°10'18" W. Michigan. Coll: E. F. Stoermer. 11 October 1968.
1730. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Michigan. Coll: E. F. Stoermer. 10 October 1968.
1731. Vertical #20 net tow. Sta. A-3, 42°05'30" N; 86°43'00" W. Michigan. Coll: E. Dunster. 8 November 1968.
1732. Vertical #20 net tow. Sta. A-4, 42°03'30" N; 87°06'30" W. Michigan. Coll: E. Dunster. 13 November 1968.
1733. Vertical #20 net tow. Sta. A-6, 41°52'00" N; 87°27'00" W. Michigan. Coll: E. Dunster. 13 November 1968.
1734. Vertical #20 net tow. Sta. C-l, 42°49'40" N; 86°14'50" W. Michigan. Coll: E. Dunster. 10 November 1968.
1735. Vertical #20 net tow. Sta. C-2, 42°49'40" Nt 86°18'25" W. Michigan. Coll: E. Dunster. 10 November 1968.
1736. Vertical #20 net tow. Sta. C-3, 42°49'10" N; 86°28'25" W. Michigan. Coll: E. Dunster. 10 November 1968.
1737. Vertical #20 net tow. Sta. C-4, 42°48'50" N; 86°41'30" W. Michigan. Coll: E. Dunster. 10 November 1968.
1738. Vertical #20 net tow. Sta. C-5, 42°49'00" N; 86°50'00" W. Michigan. Coll: E. Dunster. 10 November 1968.
1739. Vertical #20 net tow. Sta. C-6, 42°47'40" N; 87°26'50" W. Michigan. Coll: E. Dunster. 10 November 1968.
1740. Vertical #20 net tow. Sta. C-7, 42°47'30" N; 87°34'30" W. Michigan. Coll: E. Dunster. 10 November 1968.
1741. Vertical #20 net tow. Sta. E-l, 44°37'30" N; 86°18'12" W. Michigan. Coll: E. Dunster. 9 November 1968.
1742. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: E. Dunster. 9 November 1968.
1743. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: E. Dunster. 9 November 1968.
1744. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: E. Dunster. 9 November 1968.
1745. No sample.
1746. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Michigan. Coll: E. Dunster. 9 November 1968.
1747. Vertical #20 net tow. Sta.SU 68-1, 46°41.0' N; 84°47.1' W. Superior. Coll: E. F. Stoermer. 13 August 1968.
1748. Vertical #20 net tow. Sta.SU 68-2, 46°53.1' N; 84°44.4' W. Superior. Coll: E. F. Stoermer. 13 August 1968.
1749. Vertical #20 net tow. Sta.SU 68-3, 46°54.5' N; 84°35.2' W. Superior. Coll: E. F. Stoermer. 13 August 1968.
1750. Vertical #20 net tow. Sta.SU 68-4, 46°50.0' N; 84°26.3' W. Superior. Coll: E. F. Stoermer. no sample.
1751. Vertical #20 net tow. Sta.SU 68-5, 47°10.3' N; 85°07.0 W. Superior. Coll: E. F. Stoermer. 15 August 1968.
1752. Vertical #20 net tow. Sta.SU 68-6, 47°25.6' N; 87°13.5' W. Superior. Coll: E. F. Stoermer. 15 August 1968.
1753. Vertical #20 net tow. Sta.SU 68-7, 47°40.0' N; 85°24.2' W. Superior. Coll: E. F. Stoermer. 15 August 1968.
1754. Vertical #20 net tow. Sta. SU 68-8, 47°57.4' N; 84°54.1' W. Lake Superior. Coll: E. F. Stoermer. 15 August 1968.
1755. Vertical #20 net tow. Sta. SU 68-9, 47°42.8' N; 85°46.8' W. Quebec Harbor, Michipicton Island. Lake Superior. Coll: E. F. Stoermer. 16 August 1968.
1756. Vertical #20 net tow. Sta. SU 68-10, 47°52.4' N; 86°32.0' W. Lake Superior. Coll: E. F. Stoermer. 18 August 1968.
1757. Vertical #20 net tow. Sta. SU 68-11, 48°06.5' N; 88°00.0' W. Lake Superior. Coll: E. F. Stoermer. 18 August 1968.
1758. Vertical #20 net tow. Sta. SU 68-12, 48°07.2' N; 88°31.5' W. Lake Superior. Coll: E. F. Stoermer. 19 August 1968.
1759. Vertical #20 net tow. Sta. SU 68-13, 48°09.8' N; 88°30.9' W. Five Fingers, Isle Royale. Lake Superior. Coll: E. F. Stoermer. 19 August 1968.
1760. Vertical #20 net tow. Sta. SU 68-14, 47°53.1' N; 89°14.4' W. Lake Superior. Coll: E. F. Stoermer. 19 August 1968.
1761. Vertical #20 net tow. Sta. SU 68-15, 47°44.0' N; 88°59.0' W. Lake Superior. Coll: E. F. Stoermer. 20 August 1968.
1762. Vertical #20 net tow. Sta. SU 68-16, 47°04.2' N; 88°29.4' W. Portage Lake, Hancock-Houghton, Michigan. Lake Superior. Coll: E. F. Stoermer. 21 August 1968.
1763. Vertical #20 net tow. Sta. SU 68-17, 46°57.4' N; 88°16.7' W. Lake Superior. Coll: E. F. Stoermer. 21 August 1968.
1764. Vertical #20 net tow. Sta. SU 68-18, 46°46.4' N; 87°19.5' W. Lake Superior. Coll: E. F. Stoermer. 21 August 1968.
1765. Vertical #20 net tow. Sta. SU 68-19, 46°34.5' N; 86°50.0' W. Lake Superior. Coll: E. F. Stoermer. 21 August 1968.
1766. Vertical #20 net tow. Sta. SU 68-20, 46°25.0' N; 86°39.0' W. Munising, Michigan Harbor. Lake Superior. Coll: E. F. Stoermer. 22 August 1968.
1767. Vertical #20 net tow. Sta. SU 68-21, 46°53.5' N; 86°34.5' W. Lake Superior. Coll: E. F. Stoermer. 22 August 1968.
1768. Vertical #20 net tow. Sta. SU 68-22, 47°00.8' N; 86°23.8' W. Lake Superior. Coll: E. F. Stoermer. 22 August 1968.
1769. Vertical #20 net tow. Sta. HU 68-1, 45°37.6' N; 81°52.6' W. South Bay. Lake Huron. Coll: E. F. Stoermer. 24 August 1968.
1770. Vertical #20 net tow. Sta. HU 68-2, 45°17.0' N; 81°29.2' W. Manitoulin Island, Ontario. Lake Huron. Coll: E. F. Stoermer. 26 August 1968.
1771. Vertical #20 net tow. Sta. HU 68-3, 45°15.6' N; 81°40.2' W. Tobermory Harbor, Ontario. Lake Huron. Coll: E. F. Stoermer. 27 August 1968.
1772. Vertical #20 net tow. Sta. HU 68-4, 45°00.7' N; 82°01.0' W. Lake Huron. Coll: E. F. Stoermer. 27 August 1968.
1773. Vertical #20 net tow. Sta. HU 68-5, 45°23.2' N; 82°37.5' W. Lake Huron. Coll: E. F. Stoermer. 27 August 1968.
1774. Vertical #20 net tow. Sta. HU 68-6, 45°27.7' N; 83°06.0' W. Lake Huron. Coll: E. F. Stoermer. 27 August 1968.
1775. Vertical #20 net tow. Sta. ML 68-1, 43°13.4' N; 86°17.7' W. Muskegon Lake. Coll: E. F. Stoermer. 29 August 1968.
1776. Material from rocks in Rock dredge sample from 8.5 m depth, Station S-3-12, Mille Coquin's Reef, 45°58.6' N; 86°27.2' W. Lake Michigan. Coll: T. Callender. 24 July 1968.
1777. Material from rocks in Rock dredge sample from 8.5 m depth, Station S-3-13, Fagan Reef, 45°57.3' N, 85°18.2' W. Lake Michigan. Coll: T. Callender. 24 July 1968.
1778. Material from rocks in Rock dredge sample from 7.6 m depth, Station S-3-14, Simmons Reef, 45°54.8' N; 85°11.3' W, Lake Michigan. Coll: T. Callender. 24 July 1968.
1779. Material from rocks in Rock dredge sample from 21.0° m depth, Station S-3-15, Hog Island Reef, 45°42.9' N; 85°19.5' W. Lake Michigan. Coll: T. Callender. 24 July 1968.
1780. Diatoms growing on rocks 6 inches below waterline. Quebec Harbor, Michipicoten, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1781. Pool in igneous rock on shoreliner Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1782. Material growing in Potomogeton sp. at 1.5 m depth, Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1783. Material growing on rocks at 1 meter depth, Southeast shore of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1784. Material in shore pool, Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1785. Composite sample, Michipicoten River, near mouth into Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1786. Ulothrix sp. and diatoms growing on rocks at waterline. Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1787. Periphyton (Ing. Tetraspora from planks and beaver house built in wreck of old steam tug run ashore, southeast end of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1788. Material on sandy bottom in 18 inches water depth, north side of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1789. .eriphyton on emergent Scirpus sp. in 8 inches of water, north side of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1790. Material from bottom sand in 18 inches water, sand flat at east end of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1791. Periphyton on submergent Ceratophyllum sp. Michipicoten River, near mouth into Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1792. Material on rocks near waterline, Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1793. Periphyton scraped from hull timbers of wrecked ships, east end of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1794. Chara sp. growing on bottom at 35 ft. depth, north end of Quebec Harbor, Michipicoten Island, Ontario, Canada. Coll: E. F. Stoermer. 16 August 1968.
1795. Periphyton growing on dock piling at 1 meter depth, Government Pier, Batchawana Bay, Ontario, Canada. Coll: E. F. Stoermer. 14 August 1968.
1796. Material growing on sandy bottom at 14 ft. depth, near Government Pier, Batchawana Bay, Ontario, Canada. Coll: E. F. Stoermer. 14 August 1968.
1797. Chara sp. growing on mud bottom at 36 ft. depth, middle of McKim Bay of South Bay, Manitoulin Island, Ontario, Canada. Coll: E. F. Stoermer. 24 August 1968. 45°34.9N; 82°00.3W.
1798. Periphyton growing on dock camel, Big Tub, Tobermory, Ontario, Canada. Coll: E. F. Stoermer. 26 August 1968. 45°13.0N; 82°20.0W.
1799. Periphyton growing on dock camel, Big Tub, Tobermory, Ontario, Canada. Coll: E. F. Stoermer. 26 August 1968.
1800. Vertical #20 net tow. Sta. E-l, 44°37'30" N; 86°18'12" W. Lake Michigan. Coll: E. Dunster. 9 August 1968.
1801. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: E. Dunster. 9 August 1968.
1802. Vertical #20 net tow. Sta. A-l, 42°06'30" N; 86°32'00" W. Michigan. Coll: J. Ayers. 24 April 1969.
1803. Vertical #20 net tow. Sta. A-2, 42°06'00" N; 86°37'00" W. Michigan. Coll: J. Ayers. 25 April 1969.
1804. Vertical #20 net tow. Sta. A-3, 42°05'30" N, 86°43'00" W. Michigan. Coll: J. Ayers. 25 April 1969.
1805. Vertical #20 net tow. Sta. A-4, 42°03'30" N; 87°06'30" W. Michigan. Coll: J. Ayers. 25 April 1969.
1806. Vertical #20 net tow. Sta. A-5, 41°57'00" N; 87°18'30" W. Michigan. Coll: J. Ayers. 25 April 1963.
1807. Vertical #20 net tow. Sta. A-6, 41°52'00" N; 87°27'00" W. Michigan. Coll: J, Ayers. 25 April 1969.
1808. Vertical #20 net tow. Sta. C-l, 42°49'40" N; 86°14'50" W. Michigan. Coll: J. Ayers. 23 April 1969.
1809. Vertical #20 net tow. Sta. C-2, 42°49'40" N; 86°18'25" W. Michigan. Coll: J. Ayers. 23 April 1969.
1810. Vertical #20 net tow. Sta. C-3, 42°49'10" N; 86°28'25" W. Michigan. Coll: J. Ayers. 23 April 1969.
1811. Vertical #20 net tow. Sta. C-6, 42°47'40" N; 87°26'50" W. Michigan. Coll: J, Ayers. 26 April 1969.
1812. Vertical #20 net tow. Sta. C-7, 42°47'30" N; 87°34'30" W. Michigan. Coll: J. Ayers. 26 April 1969.
1813. Vertical #20 net tow. Sta. E-l, 44°37'30" N; 86°18'12" W. Michigan. Coll: J. Ayers. 27 April 1969.
1814. Vertical #20 net tow. Sta. E-2, 44°37'00" N; 86°21'42" W. Michigan. Coll: J. Ayers. 27 April 1969.
1815. Vertical #20 net tow. Sta. E-3, 44°34'00" N; 86°40'00" W. Michigan. Coll: J. Ayers. 27 April 1969.
1816. Vertical #20 net tow. Sta. E-4, 44°30'18" N; 86°55'18" W. Michigan. Coll: J. Ayers. 27 April 1969.
1817. Vertical #20 net tow. Sta. E-5, 44°25'30" N; 87°10'18" W. Lake Michigan. Coll: J. Ayers. 27 April 1969.
1818. Vertical #20 net tow. Sta. E-6, 44°27'48" N; 87°26'25" W. Michigan. Coll: J. Ayers. 27 April 1969.
1819. Material growing on glacial boulders at 60 ft. depth, near Cecil Bay, 45°46.0'N; 84°49.1'W, Lake Michigan. Coll: E. F. Stoermer, 4 Aug. 1969.
**Checked coordinate in ship log; close trip; didn't get to Hammond Bay, NLH.... RGK
1820. Material growing on glacial boulders at 60 ft. depth, near Cecil Bay, 45°46.0'N; 84°49.1'W, Lake Michigan. Coll: E. F. Stoermer, 4 Aug. 1969.
1821. Material growing on limestone bedrock at about 40 ft. depth, shoal NE of Mackinac Island, 45°53.0'N; 84°35.4'W, Lake Huron. Coll: E. F. Stoermer, 4 Aug. 1969.
1822. Material growing on cobbles at 2 meter depth in Lake Michigan, north side of Waugochance Point, N.W. 1/4 Sect. 23, R6W, Twp. 39N, Emmet County, Michigan. Coll: E. F. Stoermer, 13 August 1969.
1823. Diatom scum on surface of beach pool, north side of Waugochance Point, N.E. 1/4 Sec. 23, R6N, Twp. 39N, Emmet County, Michigan. Call: E. F. Stoermer, 13 Aug. 1969.
1824. Material growing on aquatic plants in beach pool, north side of Waugochance Point, N.E. 1/4 Sec. 23, R6W, Twp. 39 N, Emmet County, Michigan. Coll: E. F. Stoermer, 13 August 1969.
1825. Material growing on rocks in fast flowing water, Sturgeon River near Highway M-35 Bridge, S.E. 1/4 Sec. 28, R34W, Twp. 51N, Baraga County, Michigan. Coll: E. F. Stoermer, 25 September 1969.
1826. Material on rocks in flowing water, falls in Silver River near Highway 26, N.W. 1/2 Sec. 35, R30W; Twp. 59N, Keweenaw County, Michigan. Coll: E. F. Stoermer, 26 Sept. 1969.
1827. Material on rocks in flowing water, falls in Silver River near Highway 26, N.W. 1/2 Sec. 35, R30W; Twp. 59N, Keweenaw County, Michigan. Coll: E. F. Stoermer, 26 Sept. 1969.
1828. Material from sediments 20 cm below modern surface. Core GLRD SU-69-44, 360 ft depth, 46°35.8'N; 84°46.2'W, Whitefish Bay, Superior. Coll: Carol Dell, 9 July 1969.
1829. Material from sediments 20 cm below modern surface retained on 270 mesh (53µ) screen. Core GLRD SU-69-44, 360 ft depth, 46°35.8'N; 84°46.2'W, Whitefish Bay, Lake Superior. Coll: Carol Dell, 9 July 1969.
1830. Material from sediments 124 cm below modern surface. Core GLRD SU-69-44, 360 ft depth, 46°35.8'N; 84°46.2'W, Whitefish Bay, Lake Superior. Coll: Carol Dell, 9 July 1969.
1831. Material from sediments 124 cm below modern surface retained on 270 mesh (53µ) screen. Core GLRD SU-69-44, 360 ft depth, 46°35.8'N; 84°46.2'W, Whitefish Bay, Lake Superior. Coll: Carol Dell, 9 July 1969.
1832. Material from sediments 230 cm below modern surface. Core GLRD SU-69-44, 360 ft depth, 46°35.8'N; 84°46.2'W, Whitefish Bay, Lake Superior. Coll: Carol Dell, 9 July 1969.
1833. Material from sediments 230 cm below modern surface retained on 270 mesh (53µ) screen. Core GLRD SU-69-44, 360 ft depth, 46°35.81N; 84°46.2'W, Whitefish Bay, Lake Superior. Coll: Carol Dell, 9 July 1969.
1834. Material scraped from rock at 88 ft. depth. Sta. AEC-70-1. 45°23.3'N, 85°86.7'W. Coll: E. F. Stoermer. 19 May 1970. Cladophora and Bryozoa apparent.
1835. Material from rocks on inner end of Rennie Oil Dock. Traverse City, Michigan. Coll: E. F. Stoermer. 20 May 1970.
1836. Material from sand-gravel bottom. Sta. GS-70-1. 45°23.3'N, 85°86.7'W. Coll: E. F. Stoermer. 21 May 1970.
1837. Flocculent bottom. Material from hand at 50 ft. depth. Sta. GS-70-1. 45°23.3'N, 85°86.7'W. Coll: E. F. Stoermer. 21 May 1970.
1838. Material scraped from cobbles at 50 ft. depth. Sta. GS-70-1. 45°23.3'N, 85°86.7'W. Coll: E. F. Stoermer. 21 May 1970.
1839. Material scraped from rocks at ±30 ft. depth. Sta. AEC-70-14. 45°26.3'N, 85°21.6'W. Coll: J. Krezoski. 22 May 1970. Gomphonema.
1840. Flocculent bottom. Material from ±30 ft. depth. Sta. AEC-70-14. 45°26.3'N, 85°21.6'W. Coll: J. Krezoski. 22 May 1970.
1841. Algae crust scraped from rocks at ±30 ft. depth. Sta. AEC-70-14. 45°26.3'N, 85°21.6'W. Coll: J. Krezoski. 22 May 1970.
1842. Material scraped from rocks at ±30 ft. depth. Sta. AEC-70-14. 45°26.3'N, 85°21.6'W. Coll: J. Krezoski. 22 May 1970. Gomphonema.
1843. Material scraped from rocks at ±30 ft. depth by dredge. Sta. AEC-70-14. 45°26.3'N, 85°21.6'W. Coll: E. F. Stoermer. 22 May 1970.
1844. Material scraped from piling at end of city dock, Harbor Spring, Michigan. Coll: G. Tompkins. 23 May 1970.
1845. Rex Lowe 11-5-67 RLL. Material ex Rex Lowe - no duplicate or extra material. Coll: R. Lowe. 5 Nov. 1967.
1846. Waldo Lake Oregon, plankton haul ex Charles F. Powers. NERP 45015A. Coll: C. Powers. 4 Nov. 1969.
1847. Waldo Lake, Oregon, plankton haul ex Charles F. Powers. NERP 32001A. Coll: C. Powers. 5 Aug. 1969.
1848. Cultured material of Stephonodiscus tenuis Hust. from Lake Ontario ex Ruth Holland Beeton ex Czesia Nalewajko Sparling.
1849. Cultured material of Stephanodiscus astraea from English Lake District ex Ruth Holland Beeton ex J.W.G. Lund.
1850. Diatoms growing on volcanic rocks along the shore of Santiago Bay below the Indian village of Santiago Atitlan. Feb. 10, 1970, Lake Atitlan, ex E. J. Fee.