2S s Til K A 31 EK I CAN MONTH L Y | A ug . , 



MU'KOSCOPK VL S0( IKTIKS. 



San Francisco, Cal., Wm. E. Loy, Secretary. 



April r>. 181);>. — Emmet Rixford, M. D., was elected a meiultcr. 

 The cabinet was increased by the addition of various i>re[)ara- 

 tions and specimens, including cane sugar in quince jelly and a 

 section of oolitic marble from Lighton. Omaha; moving bubbles 

 in blue stone, from the Essex County Microsco|»ical Society, fos- 

 sil diatoms from L. M. King, Santa Kosa; slide of Sfiepherdia, 

 mounted by George Otis Mitchell; diatomaceous earth from St. 

 Peters, Hungary, received from K. Gestheimer, Berlin; turkey 

 liver from Colonel C. Mason Kinne; leaves of Sliepj>cr(lia aina- 

 dcjv<i«, from the Iron City Microscopical Society, Pittsburg. 



The library, beside the regular list of i»eriodicals and journals, 

 was augmented by "Manipulation of the Microscope," by 

 Bausch, donated by Charles C. Riedy. A large number of val- 

 uable new book was brought to the attention of members, in- 

 cluding the'* Rejtort of the Challenger Expedition on Fora- 

 menifera," "Squire's Methods and Formula'," " Mills' Photogra- 

 phy Ap|died to the Microscope,"" Bousfield's Photo-Microgra- 

 phy," " Behrens' Guide to Microscopy in Botany," translated 

 by Hervey; " Wormley's Micro-Chemistry of Poisons," " Black's 

 Formation of Poisons by Micro-Organisms," and '• Senn's Sur- 

 gical Bacteriology." 



Douglass W. Montgomery, M. D., delivered an address on 

 Mollmcum contagiosiim, a peculiar cutaneous disease which for 

 years has furnished a topic for microscopical investigation. 

 The disease is not one of painful or fatal issue, and its chief in- 

 terest lies in the changes observed in epithelial cells during its 

 development. It has also served, by its analogy in growth and 

 develojiment to true cancer, to ))romote investigation and study 

 of that fatal morbid growth in a new direction, and the speaker 

 predicted that the students of cancer had made the preliminary 

 advance which must lead to such knowledge as will enable phy- 

 sicians to prevent if it may not be possible to cure the disease. 

 Dr. Montgomery has prepared several sections of Molluscum 

 contaffio-nnn, which showed prefectly its peculiar develoqment. 

 At the conclusion of the address discussion followed, and Fome 

 interesting and valuable facts regarding the development of dis- 

 ease germs in the blood corpuscles were elicited. 



