I/' 
102 FLORIDA GEOLOGICAL SURVEY. 
173. Shaler, N. S.— 
Report, Atlantic Coast Division. 
U. S. Geol. Sur. 9th. Ann. Kept., 71-74, 1889. 
Reference to investigations made in Florida occurs 
on pp. 72-73. 
174. Shaler, N. S.— 
Report of the Work of the Atlantic Coast Di¬ 
vision. 
U. S'. Geol. Sur. 10th Ann. Rept. pt. I, 117-119, 
1890. 
175. Shaler, N. S.— 
General account of the fresh-water morasses of 
the United States with a description of the Dismal 
Swamp district of Virginia and North Carolina. 
U. S. Geol. Sur. 10th Ann. Rept. pt. I, 255-339, 
figs. 2-38, pis. 6-19, 1890. 
Contains description of Mangrove swamp. 
176. Shaler, N. S.— 
(Discussion following paper by J. B. Tyrrell.) 
Geol. Soc. Am. Bull. I, 409, (1-2 p.) 1890. 
From recent investigations believes that a depression 
in glacial times or about the time of the last glacial period, 
permitted the Gulf Stream to flow over Florida up to the 
northern portion of the Lake district. 
177. Shaler, N. S.— 
Note on the Value of Saliferous Deposits as 
Evidence of former Climatal Conditions. 
Boston. Soc. Nat. Hist. Proc. XXIV, 580-585, 
1890. 
Reference to Florida occurs on/p. 584. Postulates ele¬ 
vation of Florida at some time to a considerable height 
above sea to account [ for the drainage of salt water from 
the rocks to a depth of nearly a thousand feet. 
