96 The American Naturalist. [Jan 
has kept his connection with the Harvard University, and for years hai 
been one of the most famous men in the University. Profes é 
Hagen’s contributions to the science of entomology have been of great 
sity of Königsberg in 1863, and in 1887 Harvard conferred upon 
the honorary degree of S. D. His publications include more than 
— of which the most important was his “ Bibliotheca Entomol 
gica,” published in Leipzig in 1862. 
The stratigraphical collection of Canadian rocks on exhibition at 
Columbian Exposition, Chicago, has been catalogued by Mr. 
Ferrier. The collection comprises 1500 specimens, and illustrates 
the formations known to occur in the Dominion of Canada, from 
Laurentian to the Pleistocene. As the collection is very com 
geographically, it is proposed to incorporate it with that already in the 
Museum of the Canada Geological Survey and thus form an unriva 
led series of the rocks of Canada. 
Erratum in note of a paper by Mrs. E. G. Britton, on page 826 
line 24 from top, the sixth word should be disproved. 
Albert F. Woods, Assistant in Botany in the University ° 
Nebraska, has been appointed Assistant Pathologist in the ee 
cena Pathology of the Department of Agriculture in Was 
“ Briefly describe the heart and its function or work.” Ans. “ 
heart is a comical shaped bag. The heart is divided into several p 
by a fleshy petition. These parts are called the right artillery, 
artillery and so forth. The function of the heart is between the 4 : 
The work of the heart is to repair the different organs in about & 24 
minute. ” ; 
“What are metamorphic rocks?” Ans. “Rocks that contain 
aphors.”—London Globe. 
