119 U231 Fossil diatoms under a peat bog, Aberdeenshire, Scotland U232 Fossil diatoms; Oregon; no. 59; Fremont's Report U233* Recent polythalamia, etc.; Isle of Delos; C. Stokes U235* Limestone with polythalamia; Mount of Olives, [North Carolina ?] U236* Recent polythalamia, Manila, Philippines U241* Lower end of St. Mary's County, Maryland U244* Williamsburg, Virginia U246* Suisun Bay, 25-30 miles above San Francisco, California U247* MeherrinRiver, Virginia; fossil diatoms U248 Concord, Massachusetts; Prof. Hitchcock's collection U249 Nova Scotia; Dr. Leidy U253 Blue Hill Pond, Maine U254 Duval's Creek, Enterprise, Florida; cleaned with KO and ignited U255 Lower end of St. Mary's County, Virginia U268 Diatoms, Recent infusoria; River Humber and adjacent salt water ditches, England U273 Fossil diatoms; Piscataqua, Maryland --------------------------------- * Unmounted samples in vials are in the collection in addition to slides