LETTER OF TRANSMITTAL. 
To His Excellency, Hon. Park Trammell, 
Governor of Florida. 
Sir:—In accordance with the Survey law I submit herewith 
my Fifth Annual Report as State Geologist of Florida. This 
report contains the statement of expenditures by the Survey for 
the fiscal year ending June 30, 1912, to which I have added a list 
of the expenditures of the Survey for the succeeding half year 
ending December 31, 1912. The progress of the Survey inves¬ 
tigations during the year are shown by the scientific papers that 
will form a part of this report. These include a paper on the 
origin of the hard rock phosphates of Florida; a report on the 
artesian water supply of southern Florida, and a list of elevations 
in the State together with a second edition of the general topo¬ 
graphic map of the State previously published. 
I venture to add here a resume of the principal investigations 
of the Survey since its organization and to make certain recom¬ 
mendations which I believe to be for the good of the future use¬ 
fulness of the Survey. Permit me to express in this connection 
my appreciation of the interest you have shown in the work of 
the State Geological Survey. 
Very respectfully, 
E. H. SELLARDS, 
State Geologist. 
