Carl Zeiss, Optical Works, Jena. 



London Branch : 29 Margaret St., Regent St., W. 



Telegrams 



DIACTINIC, LONDON.^ 



Manufacturers of Microscopes^ Photo^Micrographic Apparatus, Photographic 

 Objectives, Stereoscopic Binocular Field^GIasses, and Instruments for Optical 

 and Physical Research, such as Refractometers, Comparators, &c. 



NEW P' 



STAND. 



This Stand has several 

 being the short and wide 

 and a new fine adjust- 

 arranged and constructed 

 impossible to injure it in 

 by over-winding. The 

 the body is extremely 

 milled-heads by which it 

 the value of the intervals 

 metre. The wide, short 

 much facilitates the use 

 objectives, whether for 

 projection on the screen, 

 adapted for working with 



C 



new features, the chief 

 body-tube, 50 mm. diam., 

 ment which has been so 

 as to render it almost 

 lifting the instrument, or 

 resulting movement of 

 slow, and one of the 

 is moved is graduated, 

 being 0-002 of a milli- 

 body-tube of this stand 

 of low-power long-focus 

 micro - photography, or 

 It is particularly well 

 the Planars Nos. 1-4. 



iJatalogues will be sent free on application, stating which is required: 

 i-TALOGUE OP MICROSCOPES, 31st Edition, 1898. 



PHOTO-MICROaRAPHIC APPARATUS. 



PHOTOGRAPHIC OBJECTIVES, 1897. 

 PLANARS, PRICE LIST OP FIELD-GLASSES and REFRACTOMETERS, &c. 



GETTY CENTER UBRAR^ 



