NATURAL SCIENCES OF PHILADELPHIA. 
563 
1893 .] 
are the Rhoads collection of British Columbian birds, comprising 
about 1,000 specimens, an important collection of birds and 
mammals from southern California made by R. B. Herron, and the 
Morelet collection of mollusca. 
Through the aid of friends of the Academy, Professor E. D. 
Cope was also enabled, in company with Dr. A. P. Brown, to carry 
on explorations in the fossil beds of Dakota and Kansas during the 
summer. He brought back many valuable specimens which will 
greatly enrich the department of vertebrate paleontology. These 
specimens will be placed in the museum as soon as they can be prop¬ 
erly mounted. 
As heretofore, the Academy’s museum has furnished aid to many 
students and specialists. Besides those who have consulted the 
collections, specimens have been loaned during the year to Dr. C. 
Hart Merriam, Dr. J. A. Allen, Dr. Harrison Allen, Mr. William 
Brewster, Dr. L. Stejneger, Mr. G. D. Harris and Professor W. B. 
Clarke. 
Certain collections which are not arranged in the museum 
proper have, as in former years, been under the charge of special 
conservators and to these the Curators desire to express their thanks 
—to Mr. John H. Redfield, Conservator of the Herbarium; Mr. 
W. W. Jefferies, Curator of the Vaux Collections, and Dr. Henry 
Skinner, Conservator of the Entomological Section. Reports on the 
condition of these collections will be found in the special reports from 
the Sections. 
The thanks of the Curators are also due to Mr. W. W. Jefferies 
for his valuable assistance in the labeling and arranging of the 
Carpenter collection of minerals, to Mr. Clarence B. Moore, for the 
careful arrangement and labeling of his archaeological collection, 
and to Messrs. Woolman, Schultz and Boyer for valuable assistance 
in cataloguing the collections of diatoms. 
Messrs. H. G. Ives, J. E. Richardson and H. Y. Pennell, stud¬ 
ents on the Jessup Fund, have rendered important aid during the 
year in the departments of mineralogy and ornithology. 
Approved by the Curators at a meeting held Dec. 20th, 1893. 
Samuel G. Dixon, 
Executive Curator. 
