| 
Catalase content of Ascaris suum, 
with a suggestion as to its réle 
in protecting parasites against 
the digestive enzymes of their 
hosts, 395 
Cell penetration by phosphoric acid, 
463 
Cells, bacterial, method for nitro- 
gen content of, 525 
Cephalin, hydrolecithin and _ its 
bearing on the constitution of, 
111 
Chemical analysis of twenty com- 
mon food fishes, with especial 
reference to seasonal variation 
in composition, 483 
Chlorides, plasma, and chloride ex- 
cretion in the dog, effects of 
diet on, 91 
Cholesterol and glucose content of 
the blood, comparison of, 387 
CuarRK, Ernest D., and A.Lmy, 
Luoyp H. A chemical study of 
food fishes. The analysis of 
twenty common food fishes with 
especial reference to a seasonal 
variation in composition, 483 
Colorimetric determination of he- 
moglobin, 119 
Copper-phosphate mixtures as sugar 
reagents, 513 
Cottonseed oil, peas, and wheat 
flour, nature of the dietary de- 
ficiencies of a diet of, 411 
Creatine and creatinine in normal 
human blood, amount and dis- 
tribution of, 169 
Creatinine and creatine in normal 
human blood, amount and dis- 
tribution of, 169 
Cretcuer, L. H., JR. 
and CRETCHER, 505 
Crozirr, W. J. Cell penetration 
by acids. IV. Note on the 
penetration of phosphoric acid, 
463 he 
See LEVENE 
Index 
563 
CsonKA, Frank A. The fatty acids 
in human blood in normal and 
pathological conditions, 401 
CurtTMAN, Louis J. See Lyte and 
CurTMAN, 1 
JDANIELS, Amy L., and Lovas- 
LIN, Rosemary. Feeding ex- 
periments with peanuts, 295 
Denis, W. See Fourn and Denis, 
o21 
Determination, colorimetric, of he- 
moglobin, 119 
——., direct, of urea and ammonia in 
placenta tissue, notes on, 381 
—, gasometric, of oxygen and 
hemoglobin of blood, 127 
— of amino-acid nitrogen in 
blood, 325 
—— —— lactose in milk, 521 
, sodium and potassium, 235 
Diet, effects of, on the plasma chlo- 
rides and chloride excretion in 
the dog, 91 
— of peas, wheat flour, and cot- 
tonseed oil, nature of the die- 
tary deficiencies of, 411 
——., pellagra-producing, biological 
analysis of, 308, 411 
Dietary deficiencies of a diet de- 
rived from peas, wheat flour, 
and cottonseed oil, 411 
— essential, water-soluble B, 
study of, in relation to its solu- 
bility and stability towards 
reagents, 55 
Digestion of meat in the dog, influ- 
ence of mechanical work upon 
protein metabolism during the 
height of, 379 
Digestive enzymes of hosts, cata- 
lase content of Ascaris suwm, 
with a suggestion as to its réle 
in protecting parasites against, 
395 
tract of invertebrates, lichen- 
ase in, 161 
