10 
Journal of the 
of the corpuscle, undissolved by the agent. The cell wall appears 
wrinkled. 
(18.) Judging from a comparison of all these results, it seems 
evident that the substance of the red corpuscle differs from the 
peripheral portion, as it will take colour, will shrivel up and 
separate from it, and exhibit itself as a separate mass in the 
centre, while the cell-like portion will not colour; in other in¬ 
stances, the contents exude through the cell wall and leave the 
cell quite empty. Again, this can be prevented by the action of 
ammonia cupreate, so as to allow magenta to pass in and tinge the 
contents ; while the magenta, if used alone, causes the contents to 
issue forth, and become coloured like a fine granular mass outside 
the cell covering. The blue re-action of prussic acid points to its 
action on the iron in the corpuscles, and also in the fluid or 
plasma, in as much as amorphous masses are formed, chiefly tinged 
blue; also starchy bodies are formed through some decomposition 
between the agent used and the corpuscle contents. The noticeable 
change effected with the white corpuscles, t.e., enlarging their 
cell wall, and sometimes exhibiting a double condition, and the 
increased number of the white bodies, indicates a change effected 
in them. 
In conclusion, I will tabulate and condense the results I have 
obtained, hoping further experiments will be made to illustrate 
the interesting matters relating to the blood corpuscles. 
(19.) Prussic Acid . — Action on both corpuscles ; extrusion of 
red corpuscular contents ; dilatation of cell of white corpuscles; 
blue re-action and starchy matters formed. 
Ammonia Cupreate . — Bed corpuscular contents retained; cor¬ 
puscles seen in all conditions ; solid and spherular; bi-concave, or 
empty; able to receive magenta dye; cupreate washed away by 
water added; contents then extruded; white corpuscles dissolved; 
starchy bodies formed. 
Carbolic Acid .—Contents of red corpuscle altered, ultimately 
becoming dissolved. 
Hydrebromic Acid .—Action much resembling ammonia cupreate; 
corpuscles bluish. 
