5 2 *> Journal of Agricultural Research v 0 i. xxi, no. g 
action, nevertheless the data presented above do illustrate a case which 
seems to reverse the general belief. The experimental diet contained a 
greater amount of protein and fat than the basal diet because of the 
addition of the pumpkin and squash seeds to the former. It would be 
expected that this increase of protein and fat constituents would tend 
to increase the proteid and nonproteid nitrogen content of the urinary 
excretion of the experimental period, but the results obtained show the 
contrary to be the case. 
SUMMARY OK PART I 
1. Contrary to the belief prevalent among stockmen, ingested pumpkin 
and squash seeds inhibited kidney secretion. 
2. Not only is the volume of urine smaller when pumpkin and squash 
seeds are ingested but the total solids of the urine are diminished. 
3. When pumpkin and squash seeds are included in the ration the 
acidity of the urine tends to rise. 
4. An excess of pumpkin and squash seeds in a given ration causes 
digestive disorders. 
5. The results of lower total nitrogen and creatinin in the urine when 
pumpkin and squash seeds are ingested is of a chemico-pharinacognosic 
significance. 
II. EFFECT OF PUMPKIN SEEDS ON THE METABOUSM OF YOUNG PIGS 
The data reported in part I of this paper prompted the investigation 
of the effect of pumpkin seeds on the metabolism of young pigs. The 
results of such investigation may lead to an efficient utilization of the 
by-products of the canning factories where pumpkin and squashes are 
packed. 
In the experiments reported in the literature on feeding pumpkins to 
pigs ( J > 2 ) and to cattle (4, 5, 6 ) the only object was to determine the 
comparative economical feeding value of the fruits of the pumpkin family. 
Although it is stated in some of the scattered experimental work on 
feeding pumpkins to live stock that the claim made regarding the inju¬ 
rious effect of seeds is without foundation (6), no experimental data are 
available to support these statements. 
The object of this experiment was to secure satisfactory data bearing 
directly on the influence of pumpkin seeds fed to young pigs. 
EXPERIMENTAL WORK 
On October 26, 1920, 18 pigs which were farrowed during August, 
1920, were selected for this work. The age of these animals ranged 
between 2X and 3 months. Pure-bred Duroc-Jerseys were used. The 
experiment was conducted under dry-lot conditions at the central hog 
barn of the New Jersey Agricultural Experiment Station. Until the 
animals were chosen for this experiment they were running with their 
