346 Scientific News. [March, 
be placed in a watch-glass with a little of the solution, and kept 
at a temperature of about 50° C. until the chloroform has escaped 
In case of larger objects they may be transferred directly from 
the solution to pure paraffine, without undergoing the slow pro- 
cess of evaporation. 
Kossmann transfers the object directly from pure chloroform 
to pure paraffine, and allows it to remain in the paraffine (keptat 
a constant temperature of 50° C.) for several hours—sometims 
for two or three days. 
Dr. SCHULGIN’S MIXTURE FOR Impeppinc—Instead of H 
paraffine, Dr. Schulgin uses a mixture of paraffine with ceresna — 
substance somewhat similar to wax, but firmer and much ae 
brittle. Paraffine which melts at 55° C. is recommended; 
the amount of ceresin to be added to a given amount ol pa f this 
may be determined by experiment. The finest sections 0° j 
substance are not brittle, and herein lies the chief excellence 
the mixture. If this mixture proves too hard, it may bea 
by adding a little vaseline. 
EAU DE JAVELLE AS AN AGENT FOR REMOVING THE ore 
FROM MicroscopicaL PreparATions.—Perls,? Altmann an per 
recommend Lau de Javelle (KCIO,) as an excellent fluid w 
ing the soft parts of animal and vegetable tissues. If 4 re a 
Spongilla, for example, is placed on a slide and a drop oft ai the 
added, all the soft parts are destroyed in 20-30 nines beet 
spicula are left čz situ. After the protoplasmic parts en | 
thus removed, the preparation is carefully treated with ace a 
in order to remove any cloudy precipitates ; then oe finally 
weak, strong and absolute alcohol successively; 99° = < 
eee in oil of cloves and balsam. be obit his 
ery neat preparations of diatoms may be oĐtain“ sestroyet 
fluid. The ieda part of shells thus treated is not mounted 
Sections of plant buds were successfully treated and tho 
in Meyer’s fluid (10 volumes glycerine, 20 dist. water mi. 
cyl-methyl acetate). : prepared by 
The skeletons of small animals may be easily the skit, 
placing the bodies in Eau de Javelle, which removes a 
muscles, &c., without injuring the bones. 
ry 
SCIENTIFIC NEWS. a 
Balfour Me 
— The Balfour Memorial—The form which the val interes 
morial has taken makes it a subject of far more gene ya 
than could have been the case had the testimonial a ee 
personal tribute to the man, great as he was. An Amer 
1 Zoologischer Anzeiger, v1, No. 129, p. 21, 1883. 
? Arch. f. micr Anat., vol. or, Brg, , 
* Zoolog. Anzeiger, V, No, 122, p. 528. 
