W^W?(3r^w:*M'i?R''o!coPES. 



BRITISH MADE AT BARNET, HERTS, 



With P.ve Years' Ouarantee. 



Microscopical research work ij;ro\vs more exacting every year ; it call* 

 for the Mest Instruinonts that science has devised and mechanics' skill can 

 produce. WATSON'S MICROSCOPES are Scientific Instruments, designed 

 for Scientific Work ; thoy are noted for their permanent working quality, 

 the perfection of their movements, and the many facilities they offer for 

 accurate, convenient, and i-apid manipulation^ and withal a maximum of 

 comfort and rigidity. They are ideal for the purposes of the amateur, and 

 arc int-endod for those who work with the intellect, and not like a machine. 



If you want the Best, 



The WATSON INSTRUMENT IS YOUR CHOICE. 



You have more than 20 Models to select from at prices 



From 20I- upwardSm 

 WATSON'S "H" EDINBURGH 

 STUDENT'S MICROSCOPE 



Offers greater advantages for precise and con- 

 venient Working than any other at a similar 

 price. It has a Mechanical Stage, exactly suited 

 to general needs ; a Compound sub-stage which 

 enables the Condenser to be precisely foeusoed 

 and centred — an absolute essential for good 

 results — while the Coarse and Fine Adjustments 

 are unsurpassed for the smoothness and accuracy 

 of their working. It is also compact, but not 

 cramped. 



Price — " H " Edinburgh Student's 



Microscope Stand £9 12 6 



Ditto, fitted with 2 Eyepieces, 1-in. 

 and iin. Parachromatic Objec- 

 tives (the latter with 1 m/m. of 

 working distance), Abbe Illumin- 

 ator, complete in Mahogany 

 Case .'. £16 



F'ull particulars of the above, and every- 

 thing of the latest and best in Microscopy, are 

 contained in Watsan's No. 2 Catalogue (168 

 pages). Post free on application. 



WATSON'S MICROSCOPIC OBJECTS. 



The twentieth edition of their List of Specimens is a book of reference 

 that every microscopist should possess. Yet its comprehensiveness can 

 convey no adequate idea of the infinite variety of specimens they have 

 always on hand and the fineness of their quality. 



It has alwaj-s been the aim of Watson's to maintain the quality of their 

 Micro Objects above the commercial level, and their appreciation of any orders 

 that may be sent to them will be shown by the careful selection and supervision 

 they will exercise in the execution. 



The Catalogue will be sent post free to applicants for Catalogue 

 No. 3 by 



W. WATSON & SONS Ltd., :.rr.r.TT?t 



ESTABLISHED 1837<, 



313, HIGH HOLBORN, LONDON, W.C. 



