1893.J MICR0S(^0PI(;AL journal. 211 



By Dr. A. ('miiiMc.' l)on KkpliMntia.sisund tlie relation id'tliat 

 disease to the developineiit of Filaria sanguinis hominis, (2) on 

 Tubercle IxicUIks, (3) on Bacdlun crnxxxts spntigenus. 



By Dr. A. Ak-ock, (1) an account of tlic inotliods ciiiiiluycd 

 and sonic of tlic results! obtained in the examination ol the In 

 dian Ocean i)y II. M. S. Investigator. 



Hy T H. Holand, (1) on micro-eheinical analysis of miner- 

 als. ' 



The society p )sscsses a library and a collection of slides and 

 aj)paratus. Thereare many interesting slides. The meetings 

 are held in the Asiatic Society's room free of charge, (^uite a 

 loss was recently sustained in the departure of Dr. \V. .J. Simp- 

 son, for England, he having been one of the most prominent 

 members. 



BIOLOGICAL NOTES. 



The Ocean Food-Supply. — The food-supply of the ocean 

 consist of a few s])ecies of unicellular microscopic plants, and 

 of a few simple protozoa which feed upon them. This supply 

 is inexhaustable and it is the only source of food for all the in- 

 habitants of the ocean, except a few which live upon floating 

 sargassum and the littoral alga\ and the drainage from tiie 

 land. — Brooks. 



NEAV PUBLICATIONS. 



The Microscope ; its construction and management, bjj Dr. Henri 

 Van Heurck. English edition translated by WN^nne E. Baxter. 

 Londun and New York, 1893, pp. 382, figures 250. Royal 8.° 



As illustrative of the art of printing, this volume is ex^iuisite; 

 everything about it is superb. But we are especially interested 

 in the subject matter. 



Written in French before the Antwerp Exhibition and trans- 

 lated since that event, certain improvments and additions were 

 made in the English edition. That the translator has satisfied 

 the author abundantly appears from the preface by the latter 

 who writes in praise of the work. For .Vmericans then, the 

 English edition alone is desirable. 



