No. 6.] AM. ASSOCIATION ADVANCEMENT SCIENCE. 383 



J. F. Whiteavbs : On a recent species of Heteropora from the Strait 

 of Juan de Fuca. 



W. A. BucKHOUT : On the Gall Mites. 



J. A. LixTNER : A new Sexual character in the pupa? of some Lepi- 

 doptera ; On an Egg parasite of the currant saw-fly, Nematiis ventri- 

 cosus. 



Clarence J. Blake : On the position of the Gamopetahe ; Progres- 

 sive growth of Dermoid coat of the Membrana tympani. 



Frank Baker : The Morphology of arteries. 



Albert S. Bickmore : The Jessup collection to illustrate American 

 Forestry in the Museum of Natural History. Central Park, New York. 



Lester F. Ward : The Organic Compounds in their relations to 

 life ; Classification of organisms. 



Burt G. Wilder : On the habits of Cryptobranchus. 



C. E. Besset : Some observations on the action of frost upon leaf- 

 cells. 



Edward D. Cope : The Fauna of the Puerco Eocene ; The primary 

 divisions of the Ungulata. 



Wyllis A. Silliman : Remarks on the Turbellaria. 



•Jos. F. James : Monograph of the Clematida; of the United States. 



Serexo Watson : Notes on the Flora of the Rocky Mountains. 



HISTOLOGY AND MICROSCOPY. 



Wm. B. Carpenter : On angular aperture in relation to biological 

 investigation. 



W. Osler : Demonstration of the Bacillus of Tuberculosis ; The 

 third Corpuscular element in the Blood ; The development of Blood 

 Corpuscles in the bone-marrow ; Note on the Microcytes of the blood, 

 and their probable origin. 



Louis Elsberg Plant-" cells " and living matter. 



Henry 0. Marcy : Histology of uterine fibroid tumors. Illustrated 

 by micro-photographs. 



T. .J. BuRRiLL : Some Vegetable poisons. 

 W. A. Rogers: A Study of the problem of fine rulings with reference 

 to the limit of naked eye visibility of microscopic resolution ; On a 

 new form of dry mounting. 



Thomas Taylor : The House Fly considered in connection with the 

 distribution of infections and contagious poisons ; A new economic 

 freezing Microtome for section-cutting, with new mechanical devices. 



A. H. Tuttlb ; On the epidermis of Marsipobranchs. 



D. P. Penhallow : Notes on some of the pecularities incident to 

 the diseases of fruit. 



Romeyn Hitchcock : Notes on the present status of sanitary inspec- 

 tion, with special reference to the examination of water and air. 



C. E. Hanman : A filtering wash-bottle adapted to the use of the 

 Histologist. 



J. H. PiLLSBURY' : Development of Cilia in the planula of Clara 

 leptostyla. 



