: 
1876.] Microscopes at the South Kensington Museum. 533 
well-known forms of the different makers enclosed in glass cases. 
Probably the London shop-windows present as great a variety in 
microscopes as this section of the collection. The instruments are 
all muddled together without any order or attempted arrange- 
ment. 
Powell and Lealand do not exhibit. Messrs. Ross & Company 
exhibit a large instrument on the Jackson slide principle, de- 
signed by Mr. F. H. Wenham. The great point in this form is, 
that the fine adjustment is placed under the instrument, and can- 
be reached without taking the hand from the coarse adjustment. 
Thus the old objection to this model has been removed. Messrs. 
R. & J. Beck also have one of their best microscopes, showing 
great perfection of work; also a cheap form called “ The Eco- 
nomic,” It is monocular, highly finished, and is altogether a 
charming instrument and furnished for five and six guineas, with 
objectives and case. 
Mr. Stephenson exhibits his erecting binocular microscope, for 
which he claims many decided advantages, which should make it 
extremely useful. The instrument of the future, the comfort of 
looking through inclined tubes and still having the stage horizon- 
tal, and the image in its natural position, certainly marks a great 
advance in construction. 
Mr. J. Browning shows a microscope upon the same model, but 
with what is claimed to be an improvement, In this instrument, 
for the first time, the planes introduced by Mr. Stephenson for 
altering the direction of the rays, so that the microscope can be 
used with the stage in a horizontal position, have been introduced 
near the eye-piece in the separate bodies. This arrangement 
will, it is believed, be found to possess considerable advantage. 
Such is the official description, which must be taken for granted, 
as the exterior presents no novel feature. : 
wift, who is turning out some of the best moderate-priced opti- 
_ Cal instruments in London, shows a microscope very similar to 
Hessrs. Beck’s “ Economic,” called the “ New College Microscope.” 
a new crane arm-binocular. This is an excellent full-sized 
| strument, and for a good, working microscope, appears all that 
“an be desired, and sold with good objectives at a price within the 
Teach of the student microscopist. ; 
The German manufacturers have sent a few instruments, and 
are chiefly represented by Messrs. Tiebert and Krafft, and E. 
tz, both of Wetzlar. Respecting these microscopes I noticed 
as Special, except that they appeared inferior in workman- 
"lp to those exhibited by the London makers. 
