ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
701 
for class demonstration. In the other instrument, the objects are 
mounted in the rim of a brass barrel, which is turned around for each 
specimen to be shown. 
F. Leitz of Wetzlar has a fair exhibit of his stands under the 
charge of his American agents, Richards & Co. It is located in the 
south end of the Mines and Mining Building, but the exhibit is not in a 
place where it can be seen to advantage. He has also a few instruments 
in the German Educational Exhibit, where Hartnack of Potsdam, 
Seibert of Wetzlar, and a few other minor makers are also represented. 
The only foreign makers of note who do not exhibit are Crouch and 
Swift of London, and Klonne and Muller of Berlin, so that the foreign 
representation as a whole is very complete. 
In order to bring together microscopists and Microscopes, and 
promote discussio.n and acquaintance, the members of the Section of 
Microscopy of the Chicago Academy of Sciences, formerly the Illinois 
State Microscopical Society, have made an exhibit, where they have on 
exhibition not only specimens of the leading kinds of Microscopes, but a 
large number of mounted objects and photomicrographs made by their 
members. Demonstrations of methods of mounting, and instruction in 
the use of the Microscope and testing of lenses are given every other 
day by experts, and the exhibit, which is in section E of the north 
gallery of the Liberal Arts Building next to the Bausch and Lomb 
display, is designed for headquarters for all interested in microscopy, 
when attending the Fair.” 
The late Mr. George Brook, F.R.M.S. — Mr. Brook had lived for so 
comparatively short a time in London that he was not known to the 
Fellows who attend the meetings of the Society, but it was hoped that 
he might soon have become a regular attendant. While resident in 
Edinburgh, at the University of which he was Lecturer on Embryology, 
he took a large share in the formation of the Scottish Microscopical 
Society. His work on the development of fish, his report on the Anti- 
patharia of the “Challenger” Expedition, and his splendidly illustrated 
Catalogue of the specimens of Madreporci in the collection of the British 
Museum, were all of a high order of merit, and bear testimony to his 
great intellectual powers. By his death, at the early age of thirty-six, 
Zoology has lost a valuable worker, and his many friends have been 
deprived of a man of sterling worth. 
The Microscope in Public Schools.* — Mr. W. W. Weir says, “ lam 
using a Microscope in my school. I have a regular hour set apart, when 
each pupil comes to the glass and makes his observation, passes 
quietly to his seat, and the next comes, and so on, till all have made an 
observation. From the outset great interest has been manifest. A great 
majority are enthusiastic. During the noon and recess hour there is a 
throng at my desk seeking admission to the glass. 
In the higher grades, I use the glass mostly for technical purposes. 
In the lower grades, the main purpose is to please, but even here I find 
appreciation. It is amusing to see the primary children crowd round 
the table, exultant with joy, when the glass goes to their room. I believe 
that there is more disciplining power in the Microscope than in iron-clad 
rules or rods. Bring the Microscope into a room where all is confusion, 
and instantly the scene is changed.” 
* Microscope, i. (1893) pp. 39-40. From ‘ The Naturalist Teacher.’ 
