18 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 59 
The work done in the season of 1910-1911, related to vertebrate 
animals, land and fresh-water mollusks, and plants, including flower- 
ing plants, grasses, and ferns. The work on mammals and birds was 
carried on by Mr. E. A. Goldman of the Biological Survey of the U. 
S, Department of Agriculture; on reptiles, batrachians and fishes, 
by Prof. S. E. Meek of the Field Museum of Natural History, 
Chicago, and Mr. S. F. Hildebrand of the Bureau of Fisheries of the 
U. S. Department of Commerce and Labor; on insects, by Messrs. 
E. A. Schwarz and August Busck of the Bureau of Entomology, 
U. S. Department of Agriculture; on flowering plants, by Prof. H. 
Fic. 18—Goldman party ascending the bed of a stream on the way into the 
mountains at the head of the Chagres River, Panama. Photograph by Goldman. 
Pittier ofsthe Bureau of Plant Industry, of the same department ; on 
grasses, by Prof. A. S. Hitchcock, of the same bureau; and on ferns, 
by Mr. W. R. Maxon of the U. S. National Museum. 
Mr. Goldman left Washington late in December, 1910, and arrived 
in the Canal Zone on the 28th of that month. He spent the following 
six months mainly in the Zone, giving special attention to the Gatun 
Lake area, where a luxuriant tropical forest will be replaced by a large 
lake. He reported that great changes, due to flooding, were already 
observable and that still greater ones were impending. The killing 
