ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
127 
another similar diaphragm of stamped brass fitting after the manner of 
a cap, but with internal flange ; a similar cap, but with deeper flange, is 
applied at the other end, and this has a circular hole in the centre, 
against which a blown-glass spherical lens of about 1/4 in. diameter is 
pressed on the inner side by a tin plate with corresponding central hole. 
The object is placed between two square plates of glass and thrust up 
against the lens, a tin diaphragm follows, and these are held in position 
by a roughly bent piece of tin serving as a spring. The ends of the 
caps are stamped with an inscription and lacquered ; the tin tube is also 
lacquered. 
The higher priced Microscope differs from the other, (1) in having 
the tin tube coloured in addition to being lacquered; (2) it has four 
extra pairs of glass plates termed “ object-glasses/’ ; and (3) a fuller 
pamphlet accompanies it. 
Whilst wholly disclaiming any desire to depreciate the quality of 
these Microscopes, we are compelled to state that the whole manufacture 
suggests that of common toys of tin. And as it would be obviously 
unfair to compare their optical quality with that of more expensive 
instruments, we have compared it with a Stanhope lens, such as is com- 
monly sold in the London streets at the price of Id. each, including 
wire and tin mounting and a pair of glass plates for clipping objects, 
and our impression is that the latter is not inferior. 
The late Mr. Brady, Hon. F.R.M.S.* — We give, almost verbatim, a 
copy of the best of the notices we have seen of our deceased Fellow. As 
it is from the pen of Prof. M. Foster, Sec. B.S., it is written by one who 
knew him well. 
Henry Bowman Brady was born on February 23rd, 1835, at Gates- 
head. His father, an esteemed medical practitioner of that place, 
belonged to the Society of Friends, and retained to the end the dress 
and manner of conversation of that body. The father’s house, for many 
years the home of the son, was one of those charming Quaker abodes 
where strength and quietude sit side by side, and where homely plenty 
and orderly preciseness hide, for a moment, from the stranger the intel- 
lectual activity which is filling the place. Though the son, when I 
knew him, had abandoned the characteristic dress and speech of the 
society, without, however, withdrawing from the body, the influences of 
his surroundings moulded his character, making him singularly straight- 
forward and free from any manner of guile. 
After an ordinary school career spent in Yorkshire and Lancashire, 
and an apprenticeship under the late Mr. T. Harvey, of Leeds, and some 
further study at Newcastle in the laboratory of Dr. T. Bichardson, 
which may be considered as the forerunner of the present Newcastle 
College of Science, he started in business in that city as a pharmaceutical 
chemist in 1855, while yet a minor. That business he conducted with 
such ability that in 1876 he felt able to resign it to Mr. N. H. Martin, 
and to devote the whole of his time to scientific work. He contributed 
to science in two ways — one direct, the other indirect. Of the many 
scientific movements of the last thirty years or so, one, not of the least 
remarkable, has been the scientific development of the pharmaceutical 
* Nature, xliii. (1891) p. 299. 
