QUARTERLY CHRONICLE OF MICROSCOPICAL 



SCIENCE. 



Kolliker's and Siebold's Zeitschrift fur Wissencb. Zoologie. 

 Part II, 1868. 



\. " A Contribution to the Knowledge of the T(sni(e" by 

 Johannes Feuereisen, of Dorpal. One plate, forty-five pages. 



2. ''Anatomy of the Bed-bug {Cimex lectularius, L.), by 

 Dr. Leonard Landois, of Greifswald. — This is a detailed 

 memoir of nineteen pages, illustrated by two plates, and is a 

 worthy successor to the author's treatises on the anatomy of 

 the Pediculi infesting the human species. The various glands 

 of the insect — salivary, Malpighian, and stink-glands — are 

 carefully described and figured. Dr. Landois has examined 

 especially the secretion of the last. He finds that it crystal- 

 lizes from an ethereal solution in colourless prisms, and has 

 a powerfully acid reaction. Its chemical formula appears to 

 be C.^gHogO^. The name Cimicin acid is given to this body. 



o. "On the Tunics which surround the Yelk of the Bird's 

 Egg," by W. von Nathusius, of Konigsborn. — This is a 

 memoir of forty-six pages, illustrated by five large plates, and 

 worthy of more detailed notice than we can noAV give to it. 



4. " On the Genus Cynthia as a Sexual Form of the Mysidian 

 Genus Siriella/'' by Prof. Dr. C. Claus. Four pages, one plate. 



5. " On the Snake-like Amphibians (Ccecilice) ; a Contribu- 

 tion to the Anatomical Knowledge of the Amphibia," by Prof. 

 Leydig, of Tvibingen. Eighteen pages, two plates. 



6. " On Deposits of Tyrosin oti Aiiimal Organs,'^ by Carl. 

 Voit. — This notice, as explanatory of an apj)earance not \\\\- 

 frequently met with in ill-preserved preparations of animal 

 tissues, is of some interest, amongst others, to the micro- 

 scopist. 



Some years since sj^ecimens of fish which had been kept 

 in weak spirit were sent to Herr Voit to determine the nature 

 of a peculiar deposit upon the surface of the scales, which 

 was so copious as entirely to destroy the value of the speci- 

 mens. 



