286 THE MIcROScOPE. 
CORRESPONDENCE. 
_ Eprror Tue Microscopr.—Mr. Latham, in his article on the 
structure of muscle, in your last issue, makes no mention of the 
fibrille of striated muscle. Some years ago I accidentally hit upon 
- a convenient object for demonstrating these in the fresh state, 
which may not be generally known. The large thoracic wing- 
muscles of the flies separate with the greatest readiness, on teas- 
ing, into fibrille showing the transverse markings. The blue- 
bottle fly is convenient on account of its size, but the house-fly 
will answer the purpose almost as well. 
W. L. Worcester, M. D. 
Epiror THE Microscopr.—Owing to the sale of Tue .Micro- 
SCOPE announced in this issue, the agency for the sale of my rul- 
ings is, with the consent of the former proprietors of this jour- 
nal, hereby revoked. 
All orders and correspondence should hereafter be forwarded 
to me. 
MarsHALL D. EWELL, 
97 Clark Street, Chicago, Ill. 
NEWS AND NOTES. 
Dr. K. Krapelin has published a monograph of the fresh water 
Polyzoa of Germany. 
- The entire edition of the concluding volume of the “Chal- 
lenger Reports” is said to have been lost at sea. 
Mr. John Ralfs, who was one of the earliest of the students of 
the Desmids and the Diatoms in England, is dead at the age of 
eighty-two years. 
In the Journal of the Royal Microscopical Society for pecs 
1888, Mr. John Rattray publishes “A Revision of the Genus 
Auliscus,” with six plates and artificial keys to the species of 
these beautiful Diatoms. 
The twelfth annual meeting of the American Society of Mic- 
roscopists, which.was recently held at Buffalo, is said to have 
been of unusual interest and importance. Dr. George E. Fell, 
the well known microscopist, of Buffalo, was elected president. 
