214 CURIIENT NOTES AND MEMORANDA. 



We insert a letter from Mr. Worsley-Benison, who takes a 

 somewhat different view of the question of monthly issue to that propounded 

 by the Rev. H. W. Lett. We shall be glad to know how a monthly supple- 

 ment will meet the case, if published at a low price, say fourpence ; and 

 embracing the following subjects : — -I. — Questions on every branch of Science. 

 II. — Replies to same by Subscribers. III. — Letters to the Editor on any 

 matters of interest. IV. — Cuttings from Scientific Journals. V. — An Exchange 

 and Sale Column. VI.— Answers to Correspondents. Perhaps those of our 

 subscribers desiring it will write us on the subject. 



Studies in Microscopical Science. Since our last issue 



we have received Nos. 3,4, and 5 of each of the four sections into which these 

 " Studies " are now divided. The slides and plates illustrating Section 

 I. are Batrachospermum, showing Cystocarps ; v-s. of Solorina crocea ; 

 and organs of sexual reproduction of Chara. Those of Section II. are t.s. 

 of organ of Bojanus, from the Anodon ; Liver of Lobster ; and s. of Skin of 

 Frog. Of Section III. we have the third stage of Alveolar Pneumonia and 

 Bronchio-Pneumonia. And in Section IV. the Jaws of Epeira diadema 

 ^ ; t.s. [Medical Leech ; and t-s. Hair of Peccary. 



Entomologica Americana is a monthly journal devoted to 



Entomology in general, and published at Brooklyn, N.Y. This Journal, the 

 third part of which is just to hand, contains much that will be found particu- 

 larly interesting to the Entomologist. It is, we believe, published by the 

 Brooklyn Entomological Society, and is edited by the Hon. Secretary. 



Mr. A. C. Peale, of the United States Geological Survey, has 

 sent us reprints of three interesting papers, viz. — The Laramie Group of 

 Western Wyoming and adjacent regions ; Jura-Trias Section of South-Eastern 

 Idaho and Western Wyoming ; and the World's Geysier-Regions. 



The following list of Chemicals is recommended in the 



seventh volume of the Proceedings of the American Society of Microscopists, 

 as giving slides of very interesting Crystals for the Microscope : — Salicine, 

 santonine, helicine, asparagine, aspartic acid, bichromate of potash, arsenious 

 acid, cinchonoidine, hippuric acid, oxalate of ammonia, quinidine, sulphate of 

 cadmium, sulphate of copper, chloride of copper, platino-cyanide of mag- 

 nesium, pyrogallic acid. 



Wanted — Members for an Entomological Evercirculator. — 

 Address for particulars, Mr. T. F. Uitley, 17, BrazennosQ Street, Albert 

 Square, Manchester. 



