ANNUAL REPORT-BIBLIOGRAPHY. 
99 
154. Mitchell, Samuel L.— 
Observations on the Geology of North America, 
illustrated by the description of various organic 
remains found in that part of the world.* 
Cuvier’s Essay on the Theory of the Earth. 319- 
324, 3 pis., New York, 1818. 
155. Murray, John— 
Report on the Specimens of Bottom Deposits. 
Report on results of dredgings under the super¬ 
vision of Alexander Agassiz in the Gulf of Mexico, 
in the Caribbean, and along the Atlantic Coast of 
the United States by the U. S. S. Blake. 
Mus. Comp. Zool. XII, No. 2, 37-61, 1885; abst: 
Am. Jour. Sci (3) XNXI, 221-225, 1886. 
Records the occurrence of concretions of phosphate of 
lime in the Strait of Florida. 
156. Neal, J. C.— 
(Discovery of another bed of fossil bones in the 
Alachua Clays.) Communicated to Joseph Leidy. 
Am. Nat. XIX, 834, (1-8 p.) 1885. 
Cinders and charred bones were found two to three feet 
below the surface. 
157. Penrose, R. A. F., Jr.— 
Nature and Origin of Deposits of Phosphate of 
Lime, with an introduction by N. S. Shaler. 
U. S. Geol. Sur. Bull. 46, 143 pp. 3 pis, 1888. 
The phosphates of Florida are referred to on pp. 78-79 
This bulletin contains a bibliography of publications on 
phosphate up to 1887. 
158. Pierce, James— 
Notices of the agriculture, scenery, geology, and 
