150 
A REPLY TO MISS PORTER’S NOTE ENTITLED “SOME 
REMARKS ON THE GENERA CRITHIDIA, HERPETO- 
M0NA8 AND TRYPANOSOMAr 
By H. M. AVOODCOCK, D.Sc., 
Lister Institute, London. 
In a recent number of Parasitology'^, Miss Porter, under the above 
heading, complains because, in the Zoological Record for 1909 {Protozoa 
division, p. 60), I put the generic names Grithidia and Herpetomonas in 
inverted commas, when apjDlied to certain species; on this ground she 
charges me with allowing my personal opinions to influence me in my 
compilation of the Record, my opinions being, according to her, “extreme 
and decidedly opposed to the opinions of those who have worked personally 
on the parasites in question.” Incidentally, Miss Porter makes it appear 
that my opinions are extreme and of little or no value. 
I should not have troubled to reply to Miss Porter’s remarks if she 
had not criticised my conduct of the Protozoa division of the Record. 
But as this criticism is calculated to mislead any general Readers who 
may be interested in the Zoological Record but are not particularly 
conversant with the point at issue, I jDropose to justify myself to them. 
I am sorry that in doing so I shall have to show that Miss Porter’s 
method of criticism is not straightforward, but, on the contrary, distinctly 
oblique. 
To begin with, I will refute the charge that my opinions are extreme. 
In the first place. Miss Porter quotes joart only of the references to 
Grithidia and Herpetomonas given on p. 60 of vol. 46 of the Record. 
Immediately before the species she quotes, under the two respective 
headings, are the following references: “ Grithidia gerridis, general 
account. Porter,” etc.; and “ H. (i.e. Herpetomonas) vespae sp.n., H. 
jaculum, Porter,” etc. That is to say, the generic names are not put in 
1 Vol. IV. pt. 1, 1911, p. 22. 
