The Science Department. 



In the Science Building. 



Hours of Opening. 



The Museum of Natural History. — Open every day in the year, 

 except July 4, Thanksgiving Day, and December 25, 2 to 6 

 from March 21 to September 21, 1 to 5 from September 22 

 to March 20. 



The Catharine L. Howard Memorial Library of Science. — Open 

 every day in the year, except July 4, Thanksgiving Day, and 

 December 25, 2 to 6 from March 21 to September 21, 1 to 5 

 from September 22 to March 20. 



Curator of the Museum of Natural History. 

 William Orr. 



Assistant Curator. 

 Grace L. Pettis. 



