1893.] MiCilOSCOlMCAl. JOURNAL. KU 



Cameras. — The aim has been to <;ct tlic- lightest and most com- 

 pact form possible, consistent with strenj^tli sutticient to witiistaiul 

 traveirmj^ and climatic variations. This is realized in thehi<j;hest 

 iletjree in their Acme camera, which they are makin^; in the 

 American sizes. By the adaptation of aluminium for the fittinjjs 

 in substitution for brass, weij^ht has been furtiier <ireatly reduced. 

 Aluminium has been consitlerablv im[)roved ot late years by 

 allovin;^ with other metals, and it is now tiiorouf^hly reliable and 

 will stand hard usaj^e ; its wei<jht-savin<i^ advantaj^es can be easily 

 ajipreciated. They are also showin*^ a hand camera, called the 

 Vamieck, which has the great advantage over any other ol en- 

 abling the user to see the subject photographed during the whole 

 time of exposure, bv means of an extra focusing screen, let in 

 from the top of the camera. It is exceetlingly compact andean 

 be used either with the ordinary dry plates or roller films ; the 

 neatness of its get up. also, is so unobtrusive that it is not likely to 

 attract attention as some more palpable hand cameras very often 

 do. Their photographic lenses are made in every size and of 

 every tvpe specially for portraiture, landscape, architecture, in- 

 stantaneous work, etc. These also are shown both in aluminium 

 and in brass. It may not be generally known that within a very 

 recent perio'd it has been possible to have photographic lenses 

 certified as to their Cjualities at Kew Observatory. Watches, 

 thermometers, etc.. have long been examined there, and it will 

 be a great satisfaction to purchasers of photographic lenses to be 

 absolutelv sure from an independent verification like this that 

 their lenses are faultless. Should any one desire to have them 

 verified. Watson & Sons supply certirictl lenses to their customers 

 and will exhibit certificated lenses at the Exhibition. 



Microscopes. — These instruments are used for a variety of 

 purposes consequently there is a variety of models. For pho- 

 tography thev are exhibiting their Van Heurck microscope, which 

 is of exceedinglv complete design and rigid construction. For 

 student's use their Edinburgh Student's microscope, which has 

 been supplied to universities and medical colleges throughout the 

 world, can be taken as a good example ; also special instruments 

 for amateurs who take up the microscope for recreative reasons, 

 petrological microscopes for mining engineers, etc., etc. In 

 these, also, aluminium plays a part wherever practicable. 



Transit theodolites and levels of the latest and most approved 

 construction, combining every possible convenience for surveying 

 purposes ; also stereopticons, both singles and biennials, of the 

 most recent designs are exhibited. 



We mav mention that this tirm has already been awarded 7,2 

 gold and other medals at diflerent Exhibitions of the world, in- 

 cluding Paris Exhii)ition, 1S89, two gold medals; Kimberly Ex- 

 hibition. .South Africa, 1S92 ; Melbourne Centennial Exhibition. 

 iSSS; also at Exhibitions in London. Glasgow, Antwerp, Ade- 

 laide, Calcutta, Amsterdam, etc., and 9 times they have been 

 placed alone at Exhil)itions, receiving a higher awaid than any 

 other exhibitors showing similar goods. 



