152 The Microsoope. 



Brown's rubber cement. Very good for finishing slides. 



Miller's caoutchouc cement. Sold in England by opticians. 

 It is a most excellent and quickly drying cement. 



HoLLis's glue. Somewhat similar to Bell's cement. 



Nearly if not all of the foregoing can be most advantageously 

 bought of the opticians and dealers in microscopical materials. 



editor;s 



DEPARTMENT 



^^^ 



DR LEIDY is dead. It is not easy to write the words. It is 

 hard to accept the fact. There have been a few men that 

 should never die. Dr Joseph Leidy was one of them. He was 

 the noblest of noble men. The kindest of friends, the gentlest, 

 the wisest of men and the most learned of scientists. Did you 

 ever hear of Dr Leidy's speaking a harsh or an unkind word of 

 any human being ? No one ever heard such a word from this 

 best and noblest of good and noble men. Leidy never spoke 

 nor fought against another and perhaps a weaker than himself. 

 He seemed to possess an unconscious knowledge of his own 

 greatness, and to feel a happiness in stepping aside to give room 

 for a smaller man But while the little creatures might sputter 

 and hiss for a while, Leidy passed on serenely, did his splendid 

 work and was ever ready to lend a hand to those who had tried 

 to crowd him to the wall. A lion can always afford to smile at 

 the pismires in his way, as Leidy did. He can afford to step 

 over them, as Leidy did. 



When a successful attempt was made to crowd him out of 

 paleontology in which he had become renowned, and when his 

 western correspondents were actually bought away from him, he 

 made no remonstrance. " I thought the world was wide," he 

 said, " and that there was plenty of room for us all. I could 

 find some other subject to study. I never force myself into a 

 field that another man is cultivating. That is not kind." Is there 

 another scientist in the land that could truthfully say a thing 

 like that? If an investigator is becoming a successful student 



