220 
NOTES AND MEMORANDA. 
blood remains the same as in the normal state, which appears to be 
the case in the majority of instances, the determination of the colour- 
ing power alone gives an exact measure of the degree of anaemia ; 
(4) It is useful to distinguish in pathologic physiology the paodifica- 
tioDs which are related to the generation of globules, from those 
which belong to the evolution of these elements. 
He concludes his paper by saying that in anosmias of median 
intensity the formation of red globules, so far from being relaxed, is 
often more active than in the normal state. But they are attacked in 
the course of their evolution, which thus becomes incomplete. The 
case must be severe indeed where one sees a relaxation in the formation 
of red globules. 
NOTES AND MEMOKANDA. 
A Microscope Stag's and Lamp. — Mr. J. E. Smith, of Ashtabula, 
Ohio, U.S.A., writes to the ' Cincinnati Medical News ' as follows : — 
Some nine years since, I purchased one of Zentmayer's " Army Hos- 
pital Stands." It has been in constant use to the present time. A 
few weeks ago I begged Mr. Zentmayer to make me a new revolving 
stage, one thin enough to admit oblique pencils up to 80° from axis. 
Mr. Zentmayer kindly responded to my request, and I now enjoy a 
very complete stand, serviceable for all work To the many who own 
Army Hospital Stands, I would say, do not abandon them, but " go and 
do likewise ; " and for the benefit of such I append a brief description 
of the new stage. It is 4i inches in diameter, and a little less than 
^ of an inch in thickness at the periphery, decreasing towards the 
centre to about ^-^ of an inch at the well hole : the reasons for this 
are obvious. The stage consists of two plates, the lower one being 
securely attached to the " limb " of the stand, and is furnished with 
adjusting screws for centering ; over this the upper plate is fitted 
concentrically, and revolves in the optical axis of the instrument ; 
this plate in turn supports the object carrier which traverses the 
revolving plate with easy and smooth friction, regulated by a binding 
screw ; the carrier is also furnished with a removable stop, for use 
with the Maltwood finder. Another plate, about 3 inches in dia- 
meter, fitted with tube for carrying sub-stage appliances, connects 
by a bayonet catch to the under surface of stage, and has a sliding 
movement for centering purposes ; this plate can be placed in position 
or removed therefrom instantly. Notwithstanding the extreme thin- 
ness of this stage, I find it to be sufficiently firm. Those, however, 
who expect the solidity found in English stages, If inch thick, will 
be disappointed. 
I have lately modified my German student's lamp, and get illumi- 
nation superior to the round Argand burner. The change is easily 
made with any model of student's lamp, having removable burner, and 
the cost will not exceed fifty or seventy-five cents. A friend called 
