THE MICROSCOPE. 243 
treme cold method as discovered by him several years ago, and ex- 
hibited a series of slides with the polariscope, which were pro- 
nounced by all to be the most beautiful crystallizations ever seen. 
The process depends on bringing a saturated solution of salicine 
made with distilled water in contact with cold below the freezing 
point and Dr. James’ explanation is that the rapid congelation of 
the water interferes with the usual arrangement of the crystals, pro- 
ducing the wonderful series before alluded to, which are entirely 
unlike any forms resulting from crystallization at the ordinary tem- 
perature. The proper manner of making white-zinc cement and 
permanent oxydized enamels for ringing slides formed a portion of 
his interesting contribution to the meeting. 
H. M. Whelpley, of the St. Louis Microscopical Club, also ad- 
dressed the society on the subject of the microscope in its relation to 
pharmacy, pointing out the rapid progress being made in the detection 
of adulterations and the interest manifested generally among phar- 
maceutists in studying the character and acquiring a correct knowl- 
edge of the crude constituents of the materia medica. 
Pond life was illustrated by numerous specimens of Ceratium 
longicornis, and the beautiful little organism, Artemiasalina, or brine 
shrimp. Entomology was represented by prepared slides of the 
larva of several varieties of the Papilio family. 
Professor Hanks presented for examination a venerable edition 
of awork on Pharmaceutics published by Robert Lowell in 1661. 
Mr. Riedy donated a copy of Trembley’s work on fresh-water 
Polypes, an exceedingly rare and valuable book published in 1744. 
Juty 10, 1889.— Vice-President Breckenfeld presided, and, after 
calling the meeting to order, spoke very feelingly of the death of F. 
L. Howard, one of the old-time members, and offered the following 
resolutions, which were unanimously adopted : 
Wuereas, our late esteemed friend and fellow-member, F. 
L. Howard, has been called from earth by the final summons, and 
we who have been associated with him in the San Francisco Micro- 
scopical Society are desirous of placing on record some fitting ex- 
pression of the high regard in which we held him and of the sorrow 
we feel at his loss ; be it 
Resolved, that in the death of Mr. Howard this society is called 
upon to mourn the loss of one who, for many years, has been untiring 
in his devotion to its work and his interest in its welfare, and who 
endeared himself to its members by his quiet enthusiasm in micro- 
scopical research and by his genial and kindly disposition. 
