Awarded 

 39 Gold 

 and 

 other Medals. 



W. Watson & Sons 



[ESTABLISHED 1837] 



Finest quality 

 workmanship. 

 Perfection in every 

 detail. 



THE VAN HEURCK MICROSCOPE 



GRAND MODEL 



i solely by 



Date Due 



Grand Model Van Hcurck 



W. WATSON 



A Hi 



COARSE ADJUSTMENT.- 

 STonal Rackwork and Pini 

 JUSTMENT. -Watson's L( 



working parts fitted and finishec 

 foot with 7-inch spread. Stage 

 of the Nelson's Horseshoe pall 

 II inches. Body length 152 m/r 

 extended 250 m/m. Objectives 

 Parachromatic Series construct' 

 they are so mounted as to be 

 focus when revolved a Nosej 

 all working in the same focal 

 nickelled tubes and are of best q 



Prices : 



"FRAM" Microscope, as shown, with one Eye- 

 piece, ^4; Mahogany Case, 15s. 



Set X.— "FRAM" Microscope, with one Eye- 

 piece, two Objectives — i inch and i inch, or ^ inch 

 or I inch, complete in Mahogany Case, £6 15s. 



Set XL— Ditto, Ditto, with the addition of 

 Abbe lllr., with Iris Diaphragm and an extra Eye- 

 piece, in Mahogany Cate, ^8 5s. 



Set XII.— For Bacteriology. Same as Set 

 XI.., with the addition of inch Oil Immersion, 

 Objective, and Watson's Dustproof Triple Nose- 

 piece, complete in Mahogany Case, £14 5s. 



f & SONS. 



■iearch with high powers. The stage completely 



ontroUed by two milled heads on one centre. 



;rument is set 

 ■"djustments of 



irangement by 



tives for thick- 

 "T^ontinental or 



ubstage. The 

 _ possible Con- 



or work of the 

 hip are of the 

 _jd precision of 

 ;d Instrument. 



" H " Tripcd Edinburgh SUi- 

 /^-pTj* dent's Microscope, with mechani- 

 y,^\J 1^ , cal movements to Stage, and 

 compound Substage, as figured. 

 Price lOs. 



WATSONS' 



i)TO-MICROGRAPHIC APPARATUS. 



_ Sole Manufacturers of 



[E STRINGER APPARATUS, 



~the most perfect condensing system extant. 



[E PRINGLE VERTICAL 



CAMERA 



for Instantaneous work. 



[E LABORATORY CAMERA 



~ and 



\TSONS' STUDENTS' 



CAMERA, 



price complete 15s. 



Watson's Catalogue No. 2 contains particulars 

 of all the above, and details concerning the various 

 Microscopes, Objectives, Condensers, &c., &c., 

 manufactured by W. & Sons. 



Will be forwarded post free on application. 



MICROSCOPIC OBJECTS. 



Watsons' Catalogue No. 3 is a Classified List 

 representing a stock of 40,000 highest-class Speci- 

 mens all of the highest class. 



This will be forwarded post free on application to 



W. WATSON ^ SONS, 



313 HIGH HOLBORN, LONDON, W.C. 



BRANCHES— Edinburgh : 16 Forrest Road. Melbourne, Australia : 78 Swanston Street. 



DEPOTS— London (West End): Isenthal Potzler & Co., 85 Mortimer Street. Glasgow: W. W. Scott, 180 Sauchiehall Street. 

 Sheffield : H. Jasper Redfern, 55 Surrey Street. Manchester Agency : Woolley, Sons & Co., Victoria Bridge. 



