BULLETIN OF THE UNITED STATES FJSH COMMISSION. 93 
(2) The lanceolate lamellae originate in cavities found in the layer of 
codfish immediately underneath the red part. These cavities where the 
lamellae develop are formed at the expense of the muscular tissue. The 
lamellae are colored by carmine ; they are the result of a transformation 
of the muscle. They are certainly not composed of a fatty substance, 
for they do not turn black by an application of osmic acid, and even in 
muscles which were cut and to which this acid was applied, the 
cavities inclosing the lamellae remained light whilst the muscular sub- 
stance of the codfish turned completely black. This coloring of the 
muscle of the codfish is caused by its being impregnated with an oily 
substance. 
These cavities, when beginning to form, are entirely filled with la- 
mellae ; later when they increase in size they begin to open out in a level 
with the red which enters them, and their center becomes granular. 
By the side of these cavities others are found which are empty and 
which look as if they had been cut with a sharp instrument. They are 
scattered throughout the entire tissue of the codfish, both in that por- 
tion which comes in contact with the red and in that which is next to 
the skin. 
(3) The granular substance appears to be composed of detritus mixed 
with elements in which three or more form a sort of an organism, and 
with the special elements which we are going to describe. The color of 
this substance is light yellowish. 
(4) The muscular elements terminate in irregular borders of a granu- 
lar nature, which appear corroded. They are probably the result of the 
breaking of the muscular tissue consequent upon the growth of the cav- 
ities filled with lamellae and a granular substance. These muscular ele- 
ments have preserved their striation. They float in the liquid produced 
by decomposition, and probably aid in forming the granular substance 
described above. 
(5) We now come to the description of the special elements which 
enter into the composition of the red, properly so called. These elements 
approach, as to form, the elements called sarcodes, found in decaying 
substances but also in sound substances. They represent quarters of 
a sphere united by a common diameter. There are some in which the 
segmentation of one-half of the sphere has not taken place, and which 
therefore show the form of two quarters of a sphere and a half-sphere 
joined on the flat side, whilst others are two half-spheres, whose segmen- 
tation is not complete. These elements are refringent, and appear at 
first sight to be homogeneous. When dissolved, however, or rather when 
brought into contact with a solution of osmic acid (1 per cent, of acid), 
each element assumes a brown color, and spherical granulations make 
their appearance and a double outline. 
Taken separately, each of these elements is transparent and colorless, 
but when grouped in masses forming several layers it can easily be 
seen that the center of the mass is of a rosy color, the density of the 
