84 HOW TO SEE WITH THE MICROSCOPE. 



THE NEW ACME STAND. 



During the session of the " congress" of microscop- 

 ists at Indianapolis in 1878, Mr. John W. Sidle, of 

 Philadelphia, and myself formed ourselves into a com- 

 mittee of two for the purpose of devising a new micro- 

 scope stand. 



Mr. Sidle and myself were agreed in our opinions 

 that notwithstanding the recent improvements which 

 of late years had obtained, that there was still room 

 for further effort in the construction of microscopes. 



Ip was then and there proposed, deliberated on, and 

 agreed, that we would unite our energies in the en- 

 deavor to construct a microscope stand, which should 

 combine every possible good, be equal to any and all 

 work, exhibiting all the latest appliances, and withal, 

 to combine really reliable workmanship, at the lowest 

 possible cost, in fact at figures no higher than those 

 commanded by inferior instruments. 



This arrangement contemplated that the author 

 should furnish all the suggestions which his long ex- 

 perience with the microscope might afford, while Mr. 

 Sidle was charged with the mechanical part in the con- 

 struction of the new stand. 



This agreement has been carried out to the letter, 

 and from the date named, until August last, Mr. Sidle 

 and myself have been in close correspondence, and for 

 the purpose named. 



The first stand built under our compact was received 

 by me from Mr. Sidle early in August last, and as a 



