MINUTKS OF THK IXSTITUTK. 



NovEMRKR 3, 1 9 10. — Regular monthly meeting, with Vice 

 President Henry L. Hrooniall in the chair. Reports of com- 

 mittees and Curators and routine business. The following 

 additions to the library were reported: "Pennsylvania 

 Archives," presented by H. J. Makiver ; "Comstock's Manual 

 for the Study of Insects." A committee was appointed to 

 secure an improved means of illumination for microscopical 

 purposes, and to consider a better illumination of the hall of 

 the Institute. Albert S. Barker and C. Ivlgar Ogden were 

 appointed to attend the meeting of the Delaware \'alley Nat- 

 uralists' Union, to be held November 4th, and to make report 

 from the Institute. Under scientific communications C. M. 

 Hroomall reported upon progress made in bacterial culture 

 from samples of Media water, and Albert S. Barker showed 

 spore cases of moss under the microscope and explained the 

 structure of the hairy cap and stalk. Adjourned. 



XovEMBKR 10, 19 10. — Adjourned meeting. Lecture, "A 

 Glimpse beyond the Continental Divide," by Dr. Trimble 

 Pratt. 



Dkckmbhr I, 1910. — Regular monthly meeting, with \'ice 

 President Henry L. Broomall in the chair. Rejjorts of com- 

 mittees and officers and routine business. The following addi- 

 tions to the library were announced: "Pressure of Light," 

 by J. H. Poynting : "Proceedings of the United States 

 National Museum, Volume 37 ; " "Contributions from the U. 

 S. National Herbarium, Volume 13, Part 6, and \'olume 15 ; " 

 "Report of the U. S. National Museum on some West Indian 

 Echinoids, Bulletin 74;" "An Account of the Beaked 

 Whales of the Family Ziphiid(r in the Collection of the U. S. 

 National Museum, with remarks on some specimens in other 

 American museums. — Bulletin 74. Report of U. S. National 

 Museum;" "Geological Atlas of the United States, U. S. 



