36 The Microscope. 



the microscope will detect the germs of diseases in infected 

 clothing. It has come. 



Some years ago the ladies of Boston held a fair to buy the old 

 South church. A part}^ in charge of one department perpetrated 

 some frauds and erased as far as possible by friction the lead 

 penciled items entered in the department memorandum book. I 

 was able by low powers to reproduce nearly all the erasures, 

 much to the delight of the ladies. 



This syllabus, though incomplete, is enough to show that the 

 demand of microscopy in pleasure and business is one that com- 

 mands the respect of thoughtful minds, and should be extended 

 to embrace thousands where it doe? now one individual, for it is 

 an instrument of precision capable of great good to all. 



( To he continued.) 



A MODIFICATION OF THE BAUSCH & LOMB GLASS 

 STAGE AND OBJECT CARRIER. 



W. F. DURAND, PH. D. • 



THE device represented in the accompanying sketch is a modi- 

 fication of the glass stage and slide carrier made by the 

 Bausch & Lomb Optical Co. In the regular form, as in nearly 

 all similar carriers, both hands are needed to manipulate the 

 slide comfortably. It does not seem necessary to dwell at length 

 upon the desirability of a simple carrier which shall place the 

 slide under the complete control of one hand, that is, as com- 

 plete as any carrier other than a mechanical stage can furnish. 

 The luxury of being able to control definitely and easily the 

 movement of the slide with one hand, while the other is free 

 to remain constantly on the fine adjustment, is surely one 

 that no worker would willingly forego after having once experi- 

 enced it. 



It was to this end that the simple modifications represented 

 were introduced. To those familiar with the regular form of 

 carrier, the sketch will need little explanation. To others, how- 

 ever, a more detailed description may be necessary. 



