1890.] NATURAL SCIENCES OF PHILADELPHIA. 487 
A number of specimens have been purchased by the Section, and 
added to the collection of the Academy. 
Respectfully submitted, 
Theo. D. Rand, 
Director. 
REPORT OF THE PROFESSOR OF INVERTEBRATE 
PALEONTOLOGY. 
The Professor of Invertebrate Paleontology respectfully reports 
that owing to protracted absence in Mexico and Yucatan, acting as 
director of the scientific expedition organized under the auspices of 
the Academy, he was unable to participate in the regular spring 
course of instruction. He hopes, however, to make good the de¬ 
ficiency by extending the course of lectures contemplated for the 
coming season. 
The collections of the Academy in the department of Paleontol¬ 
ogy continue to receive steady accessions of material, so that it is 
able to maintain itself as one of the leading departments of the in¬ 
stitution. Among the more important accessions of the year is a 
large collection of Eocene fossils from the State of Texas, kindly 
presented by the State Geologist, Mr. E. T. Dumble. The collections 
obtained in Mexico and Yucatan by the Academy’s expedition, 
which still largely await critical examination, are a contribution 
alike new to science and to the Academy’s museum. 
Respectfully submitted, 
Angelo Heilprin. 
REPORT OF THE PROFESSOR OF ETHNOLOGY AND 
ARCHAEOLOGY. 
In the early months of 1890 I delivered a series of ten lectures 
on the “ General Science of Ethnography,” including its main prin¬ 
ciples and their application to the study of man throughout the 
world. 
These lectures were well attended, from 150 to 175 being the aver¬ 
age number of persons present. They appeared to excite an interest 
in the subject, and at the request of several of the auditors the lec¬ 
tures have since been written out and published under the title, 
“ Races and Peoples; Lectures on the Science of Ethnography.” 
It is believed that the attention thus directed to this important 
