No. 3.] WUSCLES AND NERVES IN AMIA CALVA. 49QI 
ment of the parts concerned, another complete dissection has 
been made and the drawings changed to agree with it, or dis- 
carded and made over again. No pains have been spared to 
have them correct. Nevertheless I do not doubt that omissions, 
if not errors, will be found in some of them, especially in those 
first made. 
The numerous serial sections used in the work were pre- 
pared for me at my laboratory, the Lake Laboratory, Milwaukee, 
at first*by Dr. W. Patten, under the direction’ of Dra; 0: 
Whitman, and afterwards by O. S. Strong and A. C. Eycles- 
hymer, under the direction of Dr. Howard Ayers. Several of 
the dissections used for control, especially those of the occipital 
region, have been made by Dr. Julius Dewitz. Dr. Dewitz also 
made the final dissections used for Figs. 35 and 58. 
In the nomenclature adopted I have followed as closely as 
possible van Wijhe, Sagemehl, and Vetter. New names have 
been used only when absolutely necessary for descriptive 
purposes, for I fully agree with Sagemehl (No. 104, p. 180, 
note 1) that radical changes will have to be made, even in 
names already in general use, when the development and 
anatomy of the vertebrate head is better known. 
In the literature referred to I have had to limit myself to 
such memoirs and publications as I could readily procure, cir- 
cumstances obliging me to live where access to libraries, even 
to my own, was impossible. Certain of the references are made 
from notes made years ago, others are to abstracts only of the 
works concerned. All references to Scomber and Gadus, and 
all those to Perca and Esox, where special reference to Vetter 
has not been made, refer to work now being done, in my labo- 
ratory here, by Dr. Dewitz and Mr. Samuel Mathers. 
PALAIS CARNOLES, MENTON. 
