98 
FLORIDA GEOLOGICAL SURVEY. 
148. Merrill, George P.— 
On Fulgurites. 
U. S. Nat. Mus. Proc. IX, 83-91, 1887. 
Describes two tubes from near Pensacola formed of 
sand particles fused to glass by lightening. 
149. Merrill, George P.— 
Stones for Building and Decoration, 453 pp. 
New York, 1891.* 
150. Merrill, F. J. H.— 
Barrier Beaches of the Atlantic Coast.* 
Pop. Sci. Mon. XXXVII, 736-745, 1890. 
151. Meyer, Otto— 
The Genealogy and the Age of the Species in the 
Southern Old-Tertiary. 
Am. Jour. Sci. (3) XIX, 457-468, and XXX, 
60-72, 421-435, 1885; Reviewed by E. W. Hilgard, 
ibid, 266-269; E. A. Smith, ibid, 270-275; T. H. Aid- 
rich, ibid., 300-308, 1885: abst: Am. Nat. XX, 511, 
(1-8 p.) 1886. 
The reference to Florida occurs on pp. 67-68, where 
Heilprin’s mapping of the Oligocene of Florida is criti¬ 
cized. 
152. Meyer, Otto— 
The Classification and Paleontology of the U. S. 
Tertiary Deposits. 
Science, VI, 143-144, 1885. 
Replies to Heilprin’s criticisms (No. 85 and 86). 
153. Millar, C. C. H.— 
The Phosphate Fields of Florida. 48. pp.* 
Eden, Fisher & Co., London, 1890. 
