114 THE MICROSCOPE. 



lists have availed themselves of the opportunity of examining Dr. 

 Hahn's microscopic preparations, and we are told that in this case 

 "seeing is believing," and all go away satisfied with the genuineness 

 of the discovery. Charles Darwin says "the discovery is one of the 

 most important." Dr. Hahn visited the great zoologist in order to 

 show him his preparations, and as soon as Mr. Darwin had exam- 

 ined one of the finest specimens, he started from his seat and greatly 

 excited exclaimed, "Almighty God I What a wonderful discovery! 

 Wonderful I" After thinking a few moments in deep silence, he 

 added, "Now reaches life down!" This last sentence is interpreted 

 to mean that now, after this discovery, we have the proof that organ- 

 isms can reach our planet from celestial space. 



THE Trichinoscope, recently brought out by the Bausch & Lymb 

 Optical Co., consists of two metal plates hinged together at one 

 end, and so arranged that they may be powerfully forced together 

 by means of the screw at the other end. A compound microscope 

 may be used in connection with it, or a simple microscope so ar- 

 ranged that it may be moved over every part of the suspected meat. 

 It is so simple that a boy could learn to use it, and the price, $3, so 

 low that it is within the reach of all. 



WE owe many thanks to the editor of the American Journal of 

 Microscopy for his friendly notice of our journal, and for the 

 good words he has spoken in our behalf. This journal, now in its 

 sixth year, is always well filled with sound practical knowledge. 

 The editor now offers the fourth edition of his "Practical Hints on 

 the Use of the Microscope." Address P. O. box 2,852, New York 

 City. 



JUST as we go to press wc arc informed of the death of the emi- 

 nent Charles A. Spencer, of Geneva, N. Y. 

 His name and fame are familiar to scientific men on both con- 

 tinents. Mr. Spencer died at his residence at Geneva, Sept. 28th, 

 aet. 68 years. We shall have something to say concerning the life of 

 this self-made man in our next issue. 



