ANNUAL REPORT—BIBLIOGRAPHY. 
103 
178. Shaler, N. S.— 
The Topography of Florida. 
Mus. Comp. Zool. XVI. No. 7, 139-156, pi. 1890; 
abst: Am.»Nat. XXIV, 768, 1890. 
179. Shaler, N. S.— 
Residual Ablation Deposits. (Contained in paper 
on “A Preliminary Sketch of the Phosphates of 
Florida,” by Eldridge, George H.) 
Am. Inst. Min. Eng. Trans. XXI, 1893. 
180. Shaler, N. S.— 
The Geological History of Harbors. 
U. S. Geol. Sur. 13th. Ann. Rept. pt. 2, 93-209, 
1893. 
The harbors of the Florida Coast are described on pp. 
130-134 and 180-193. 
181. Shaler, N. S.— 
Evidences as to Change of Sealevel. 
Geol. Soc. Am. Bull. Vi, 141-166, 1895. 
Discusses oscillation of levels in Florida pp. 154-155. 
Regards cavities in the limestone at considerable depth 
as evidences of previous elevation. 
182. Shepard, Charles Upham— 
Geological Observations upon Alabama, Georgia 
and Florida. 
Am. Jour. Sci. XXV, 162-173, 1833. 
183. Shepard, Charles Upham— 
The Development and Extent of the Fertilizer 
Industry. 
Am. Chem. Soc. Jour. XV, No. 6, June, 1893. 
Refers briefly to Florida, quoting the total phosphate 
produced by years from 1888-1892. 
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