THE MICROSCOPE. 47 



bring forth, and so we stand prepared to add a large number of 

 names to our list, and we ask again of each of our readers to assist 

 us by forwarding the names of those persons who either own micro- 

 scopes or expect to own them sometime. Just write the address on 

 a card and send it along. In this way, largely, must we hope to get 

 our journal before the public before the end of the present century. 



WE take pleasure in presenting to our readers a lithograph of the 

 character of this one illustrating the "commercial fibres," and in 

 our next issue we promise a full page lithograph of the triple-phos- 

 phates, the drawings by Mrs. Stowell from actual specimens, and the 

 engraving by the Detroit Lithographing Co. The article will be 

 written by Dr. Geo. F. Heath of Missouri. 



An article will also appear by Prof. Lobdell, subject : " From 

 Cartilage to Bone as Seen by the Microscope." 



ONE of our advertisers has informed us that in less than two weeks 

 after our first issue appeared, he had received as many letters 

 in answer to his "ad " as he expected to receive from three issues^ 

 and that already his profits from it had more than paid all expenses, 

 with five paid issues to hear from. 



DOES COOKINCx DESTROY TRICHIN.^ ? 



MVACHER, of Paris, affirms that the ordinary cooking of a 

 . joint of meat is not sufficient to destroy these parasites. He 

 submitted a leg of pork of moderate size to thorough boiling. A 

 thermometer at a depth of two and one-half inches, after a half 

 hours boiling of the meat, registered 86" F. After one hour's boil- 

 ing 118" F., and after two and one-half hours boiling 165" F. Yet 

 he declares this heat insufficient. He says that "trichinae 

 would almost entirely escape the action of boiling water " in cooking. 



