THE MICROSCOPE. 101 
phyll, coloring the endoplasm evenly all through a bright green 
usually, but sometimes a red. 
The so-called Astasia haematoides may therefore prove to 
be upon closer observation a variation of the Englena viridis. 
Stein has given copious illustrations of this cosmopolitan spe- 
cies but still open to further investigations. 
— © > 
THE McCALLA NOSE-PIECE. 
ALBERT MC CALLA, 
M® BULLOCH’S letter, in your March issue, opens with the 
remarkable statement that “he has always given me credit 
for suggesting the idea” of the “Congress Nose-Piece.” What 
various amounts of credit he may have given me in private I 
do not know, but it will be remembered that the occasion of my 
writing the protest which appeared in your February issue was 
Mr. Bulloch’s announcement in the December number of your 
journal of this nose-piece as a new invention of hisown. There 
was not a word to hint that I or any one else had had any share 
in its device. The notices in the Journal of the Royal Micro- 
scopical Society, in the American Microscopical Journal, ete., 
are alike destitute of any word or phrase to intimate that I had 
even offered a suggestion on the subject. So much for the truth 
of the opening statement; and those that follow are of the same 
character. “ Falsus in uno, falsus in omnibus.” 
Mr. Bulloch next attacks the report of my address in the 
Proceedings of the A. S. M. The reference is an unfortunate 
one for him. The Proceedings are correct, and simply serve to 
establish the truth of my claim. The phrase he objects to— 
‘““and Mr. Bulloch promises to have some specimens of this form 
ready to show at our next meeting ”’—was not in the Chicago 
Times report of my address. What I said on that evening 
was, “I hope to have some specimens of this form ready to 
show at our next meeting,” and as this was not written in my 
original MS. it did not appear in the Zimes’ report. I had fully 
intended having a specimen made up to exhibit at that meet- 
ing, but in the pressure of my correspondence and other prep- 
arations for the Chicago meeting, I neglected to care for my own 
