,18 FLORIDA GEOLOGICAL SURVEY. 
all of the State of Florida, was of coral formation. This 
view was founded upon the observations of Louis Agassiz 
and Joseph LeConte. The first publication on the subject 
by Agassiz appeared in 1852 as an appendix to the report 
of the Superintendent of the United States Coast Survey 
for the year ending November, 1851. Agassiz believed 
that not only the extreme south Florida and the Florida 
Keys were of coral formation, but that the Peninsula as 
far at least as the 28th degree of north latitude was of 
similar origin. LeConte’s paper appeared in 1857, and 
to the conclusions of Agassiz 1 added the theory that the 
keys rested upon a substructure of inorganic sediment 
carried by the Gulf Stream. Previous to these publica¬ 
tions the true character of the limestone of the mainland 
had been recognized and described by several observers. 
J. H. Allen, in 1846, described the limestone outcropping 
in the vicinity of Tampa. 2 During the same year T. A. 
Conrad publishes two papers on these formations, giving 
in the second paper a description of a number of the fos¬ 
sil shells contained in them. 3 . Tuomey in 1851 concurred 
in Conrad’s reference of the Tampa formations to the 
early Tertiary. 4 
Bailey collected fossil foraminifera during the winter 
and spring of 1849-50 5 from a locality forty miles west of 
lOn the agency of the Gulf Stream in the formation of the 
Peninsula of Florida. Joseph LeConte, Am. Assoc. Adv. Sci. 
Proc. X, 103-119, pt. 2, 1857. 
2Some facts respecting the Geology of Tampa Bay, Florida. J. 
H. Allen, Am. Jour. Sci. (2), vol. I, p. 38-42. 1846. 
30bservations on the Geology of a Part of East Florida, with 
a catalog of Recent Shells of the Coast. T. A. Conrad, Am. Jour. 
Sci. (2), II, 36-48, 1846. 
4Notice of the Geology of the Florida Keys and of the Southern 
Coast of Florida. Tuomey, M. Am. Jour. Sci. (2) vol. XI, 390-394, 
1851. 
SMicroscopical Observations made in South Carolina, Georgia 
and Florida. Smithsonian Contr. Knowl. II, No. 8, 48 pp. 1851; 
Am. Jour. Sci. (2), XI, p. 86, 1857. 
