Interim Report on Veterinary Investigations. 207 
did not much improve in condition, nor grow so well as might 
have been expected. 
V. — Feeding Pigs with Linseed Cake. 
The cake used in this experiment was the same as that supplied 
to the Heifer B. 
At the commencement of the experiment on July 21st, two 
pigs, 3 months old, were supplied with 2 lbs. of linseed cake, in 
addition to their other food. It was readily partaken of. 
On July 25th the quantity was increased to 4 lbs., and con- 
tinued for three days, when their appetite palled, and they would 
not take more than about half the quantity named. 
On July 29th one of the animals was removed and placed 
with the pig which was being fed with Hardon's cake.* Here 
it remained until the end of the experiment. The remaining 
pig was fed with linseed cake throughout the month of August 
and down to September 10th, when the use of the cake was dis- 
continued. Its relish for the food was very variable ; thus, for 
a day or two together it would readily eat 2 lbs., and sometimes 
2^ lbs. of cake ; while on other days it could scarcely be tempted 
to take half the quantity. Notwithstanding this, the animal 
thrived well, and at the end of the experiment was in excellent 
condition, contrasting favourably in this respect with the pigs 
fed on Hardon's cake. 
These experiments of feeding pigs fully confirm the conclusion 
arrived at in the case of the heifer, as to the non-existence of 
an^'thing positively poisonous in Hardon's cake. They also con- 
firm the deduction that linseed cake given in the same proportion 
to the other food of the animals is a better feeding material than 
the samples of Hardon's cake supplied for the experiments. 
VI. — Disease of Lambs. 
With reference to the resolution of the Council, at its meeting 
on November 1st, 1871, relative to the serious losses which many 
farmers had sustained, especially in Lincolnshire, from disease 
among their lambs, I have to report that the investigation then 
ordered by the Council has been carried out as far as the period 
of the year would permit. The disease alluded to has long 
since attracted attention, and from time to time engaged the 
investigations of scientific men. Essentially the affection is due 
to the existence of matured parasitic worms within the bronchial 
tubes of the lamb, which ultimately produce structural disease of 
the lungs of the animal, by the myriads of young worms to which 
* See Experiment IV. 
