The Chicago Academy of Sciences. 45 



on the printed documents of the present for the indig- 

 enous natural features. 



The third period has begun, but is not yet closed. 

 Since the Academy entered its new building- its work 

 has, with the exception of a few reverses, constantly 

 advanced in value, both to its members and to the 

 public. Its lectures and meetings have been well 

 attended; its publications have increased in number 

 and .value, and its museum is open to the public every 

 day in the year. 



The following is a summary of the collections of 

 the Academy : 



Specimens. 



In Mineralogy 5,000 



Paleontology 15,000 



Lower Invertebrates 2,500 



Mollusca ....' 75,000 



Arthropoda 35,000 



Lower Vertebrates 300 



Ornithology 4,000 



Mammalogy 200 



Ethnology 1,000 



138,000 



The following are some of the special collections 

 included in the above enumeration: 



Species. Specimens. 



W. C. Egan collection of local Niagaran 



fossils - - - 200 5,000 



W. C. Egan collection of paleozoic fossils - 1,200 7,000 

 John Walton collection of the genus 



Cyprsea ------ 165 500 



Andrew Bolter collection of insects - 4,000 10,000 



Charles Sonne collection of coleoptera - 2,500 10,000 

 Frank M. Woodruff collection of local 



birds ------- 170 1,000 



Frank C. Baker collection of local mollusks 175 5, 000 



Howard N. Lyon collection of mollusks - 10,000 

 William K. Higley collection of local 



mollusks ----- 2,000 



