INTERIM REPORT ON VETERINARY INVESTIGATIONS. 343 
death as possible, showed all the usual indications of blood- 
poisoning from deleterious food to be present, to a greater or 
less extent, in the several organs of the body. Venous con¬ 
gestion existed everywhere, the blood being black in colour 
and only imperfectly clotted. The abdomen contained a 
quantity of dark-coloured serous exudation. The rumen and 
other stomachs were distended with gaseous products, but 
their structure did not seem to have suffered. The intestines 
throughout presented an ecchymosed condition of the mucous 
membrane, the small ones containing, in addition, a large 
quantity of blood-coloured, semi-fluid exudation-matter. The 
spleen was filled to repletion with black blood, and the liver 
and kidneys were similarly affected. The lungs were also in a 
congested state ; their structure, however, was normal. Ex¬ 
travasations of blood, small in amount, had taken place into 
the substance of the heart, as also beneath the lining mem¬ 
brane of the auricles and ventricles, particularly of the left 
ventricle. 
On the result of the experiment being reported to the 
Marquis of Exeter, his Lordship communicated the circum¬ 
stance to the Council of the Society, when some members 
appeared to think that the death of the animal was rather due 
to the quantity of the cake partaken of than to anything 
deleterious which it might have contained. It was therefore 
determined to have recourse to some other experiments of a 
like kind with Hardon’s cake, and to contrast these experi¬ 
ments in feeding other young animals with large quantities 
of pure linseed cake. For this purpose two heifers—each 
about 10 months old—were selected, and three pigs, between 
three and four months old. A fresh supply of Hardon's 
cake was obtained for the experiments from the Marquis of 
Exeter. 
II .—Second Exjjeriment with Hardon’s Cake. 
July 17th, 1871. Heifer A .—2 lbs. of cake, in addition to 
other food of the ordinary description, were given to this 
animal. It was readily partaken of. On the 18th, 19 th, 
20th, and 21st, the same quantity was allowed on each day. 
On the 22nd, 3 lbs. were given, and repeated for three conse¬ 
cutive days. During the four following days, 4 lbs. were 
allowed; and on the 29th and 30th, 3 lbs. On the 31st, 
6 lbs. were given, and continued daily to August 3rd. On 
August 4th the quantity was increased to 7 lbs., and subse¬ 
quently repeated day by day in this proportion throughout 
