1887] Microscopy. IOI 
and have prohibited the Loochooans from paying tribute to 
China or from holding commercial intercourse with that country. 
The course pursued by Japan was deeply resented by China, and 
war between the two countries seemed for a while highly proba- 
ble. Prince Kung and the viceroy Li Hung Chang requested 
cordiality between the governments of China and Japan.—D. 
Bethune McCartee, MD. 
MICROSCOPY.: 
Orienting Objects in Paraffine.—In the Zool Anz., No. 199, 
Selenka has described a method of keeping paraffine melted 
while the contained small objects are being arranged under the 
microscope in any desired position, and then of rapidly cooling 
e paraffine without disturbing the position of the objects. 
Finding it difficult to make tubes such 
as he describes, which should be of such 
shape as to admit of removing the hard- | | 
ened paraffine readily, and at the same 
jects 1 mm. long and much larger, while 
giving a block of paraffine of very regu- 
lar shape and with rectangular sides. ” 
A common flat medicine-bottle is fitted 
with a cork through which two tubes 
may be fastened into a hole drilled into 
the bottle. One of these tubes (A) is 
connected with hot and cold water; the 
_ other (B) is a discharge-pipe for the 
water entering the bottle by (A), and 
raising or lowering its temperature as 
warm or cold water is allowed to flow 
in. On the smooth flat side of the bottle 
four pieces of glass rods or strips are 
cemented fast so as to enclose a rectan- 
gular space (C) which forms a receptacle 
for the melted paraffine. As long as 
the warm water circulates through the 
bottle the pa e remains fluid, and objects in it may be ar-- 
ranged under the microscope by light from above or below, and 
* Edited by Dr. C. O. WHITMAN, Milwaukee. 
4 
