118 NEW YORK ZOOLOGICAL SOCIETY 
the study of certain problems by the potash method of rendering 
cartilage visible in the complete embryo; and the photographing 
of new or undescribed life stages in mammals and birds, and of 
pupae and nests of social wasps. 
Over four hundred negatives of various scientific subjects 
were made, mostly the work of Paul Howes. Many will be used 
as illustrations in the volume of researches. A number of an- 
thropological photographs were made of the various tribes of 
Indians and as complete as possible a list of Akawai names for 
mammals and birds. Miss Taylor made many careful water- 
color studies of tropical flowering plants, a wholly new field of 
botanical endeavor in this part of the world, which will be car- 
ried much farther next year. 
The only co-operative work for which time could be found, 
was undertaken for the American Museum of Natural History. 
A collection of several hundred preserved amphibians and rep- 
tiles was made, in addition to which it was arranged that all 
specimens which died at the Zoological Park should be added to 
the Museum’s collection. Besides this, specimens, materials, 
photographs, and paintings were assembled and brought north 
for two large groups, one of red howler monkeys and one of 
hoatzins. 
The most searching and the fairest test of the success of 
any live animal collecting is the record of the creatures which 
arrive safely and become adapted to life in their new surround- 
ings. So, I present the lists, only of those that reached New 
York and the Zoological Park in health. 
Although this phase of the work was wholly subordinate 
to the scientific investigation which was the main object of the 
Station, we were able to add over three hundred mammals, birds 
and reptiles to the collections of the Zoological Park. These 
represent a total value of well over one thousand dollars. They 
are as follows: 
31 Mammals. 16 Snakes. 
154 Birds. 8 Tortoises and Turtles. 
3 Alligators. 80 Frogs and Toads. 
10 Lizards. 13) Fish: 
Without going intc too great detail, a few of the more inter- 
esting specimens may be continued. Three species of opossums 
