64 The Microscope. 



There is with them not the shadow of any danger that they will 

 turn and pulverize the thin glass and rend the object. They 

 cannot. The}^ are immovably fixed to a transverse axis ; they 

 both move upward together, and both may be lifted and turned 

 entirely awa}^ from the stage by a slight pressure of the thumb. 

 They have no lateral movement. There is no other microscope 

 made with spring-clips so conveniently and so acceptably ar- 

 ranged. It is really a pleasure to manipulate the slide beneath 

 them, and not a terror, as it is with the ordinarj^ loose affairs 

 that compel the microscopist to keep one eye on them while he 

 examines the object with the other. 



Every microscopist's morals would be improved if the optic- 

 ians could arrange with Mr. Griffith to use his perfect spring 

 clips. These alone would decide my choice between this instru- 

 ment and another of the same or even lower price, and with all 

 the conveniences of this, but with loose clips. The time has 

 passed when the microscopist should submit to be handicapped 

 by the relics of the dark ages. 



Another commendable feature is the fine adjustment. I think 

 this is unique. So far as I know it has never been applied to 

 any other stand. Since the instrument does not belong to me 

 I have been tempted to take the fine adjustment apart "to see 

 the wheels go round." Like " Budge," I am curious on thi^ 

 point. But whatever the mechanism may be its action is slow, 

 smooth and sensitive. 



I return the instrument to you as you request, but I do so 

 with regret. It may be conscientiously commended to any one, 

 beginner or otherwise, that may want a convenient, portable and 

 serviceable instrumeiit. Within the limits of a letter it is im- 

 possible to describe all its good qualities ; I can touch upon a 

 few only, but these few will be sufficient to show the reader that 

 the new and improved Griffith Club stand is a desirable one. 



Again let me say that I am sorry to part with it. 



Yery truly yours, 



An Amateur. 



