726 Microscopy at the International Exhibition. [December, 
great variety, constituting, with one exception perhaps, the most 
exhaustive exhibit in our department. Besides the familiar Na- 
chet stands, large and small, monocular and binocular, for one 
observer and for more than one, and of course the inverted mi- 
croscope of Prof. J. L. Smith, which the manufacturer never 
_ should have allowed to pass as his own, there are dainty pocket 
microscopes in cases of wood or nickel-plated metal, clinical, 
tank, and dissecting microscopes, and a few accessories, which, 
though not absolute novelties, are at least not usually seen on 
sale in this country. The most conspicuous and possibly the most 
worthless article in this exhibit is a huge inverted microscope, as 
big as a small stovepipe, in which great amplification is gained by 
means of the great distance between the ocular and the objective. 
Bardou and Son of Paris also exhibit, in connection with a 
large display of telescopes and other optical goods, one large in- 
strument of the French style, having no important characteris- 
tics, and a few inferior instruments. 
Austria is represented by S. Plossl & Co., of Vienna, whose 
little case contains a compact histological microscope of excellent 
design and attractive appearance. In place of a rack, a pair o 
arms attaches the body to the milled heads near their circumfer- 
ence, changing the rotary to a plunging motion, as if the driving 
wheel of a steam-engine moved the piston rod, and giving a very 
delicate adjustment just as the body approaches a state of rest. 
Accompanying this instrument is a clinical one, of the German 
style and far simpler than the French, English, or American 
forms. 
The handsomest case of instruments in the English depart- 
ment, and indeed in the whole exhibition, is that contributed by 
the Ross house, of London. Less than this could hardly be true of 
a finely finished show-case well filled with their almost unequaled 
workmanship. With the exception of the new Wenham adap- 
tation of the Jackson form of stand, and the series of new Wen- 
ham objectives which are understood to have been entered for 
competition and then permanently removed from the exhibition 
and the country, there is but little in the exhibit that would 
called novel, most of the forms seen being the familiar and 
standard styles of several years past. No better commenda 
tion of the new stands, whose beauty is universally conceded, 
could be desired than is furnished by the old style Ross stands 
exhibited by their side. Notwithstanding the solid workman- 
ship of the latter, and the care with which they were doubtless 
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