20 1 Report on Pleuro-Pncumonia and Foot-and-Mouth Disease. 
does not meet your views, I shall reserve to myself the right of placing the 
matter in the hands of the Royal Agricultural Society, of which I am a 
member, and this without further notice. I am determined to have the matter 
settled without delay." 
VENDORS TO PURCHASER. 
" Your two last letters are to hand. We recommend you to read over the 
whole of the correspondence, and see how the matter really stands. When 
the sample was sent, you ought, if you wished it, to have got it analysed 
before you ordered two tons. We stand on the sample. If the two tons are 
similar to the sample then we are right, and you must pay the full price you 
agreed to pay. You have been long enough in the trade to know that cakes 
quoted 81. 10s. (on the same printed list with other cakes quoted 101.) could 
not be the best. You want an allowance ; if it is a very moderate one, say what 
it is before we go to law, and, without "prejudice, we will consider what course 
is the best to, take. We have had these cases tried before, and always won. 
Our lawyer here is well up to the business, and knows the right course 
to take." 
PURCHASER TO VENDORS. 
" I must refer you to mine of the 28th September. It is the only fair means 
of settling the matter, and under the circumstances more favourable to you 
than myself. I do not wish to put the matter in the hands of the R.A.S.E. 
If I am to do so, you know the spirit in which they will take it up. Write 
me that you will adopt that course by return. I will send a sample to Dr. 
Voelcker, without my name, and pay you the value he puts on the cakes. 
What more can you ask ? It is right that you should bear this trifling 
expense. If you do not agree to this at once, 1 must send sample with full 
particulars." 
IX.- — Report on the Progress of the Investigations into the Nature of 
Pleuro-Pneumonia and Foot-and-Mouth Disease now being con- 
ducted at the Brown Institution. By Dr. Burdon-Sandekson,. 
F.R.S., Professor-Superintendent of the Institution. 
Pleuro-Pneumonia. 
As already reported in Vol. XII., Part II., the experiments on 
Pleuro-Pneumonia were not begun till the end of August, when 
the animals were in perfect health and in as good condition as 
when they arrived at the Institution. 
The first animals subjected to experiment were two yearlings. 
In one of these, the exudation liquid, with which the lungs of 
diseased animals in the developed stage of the disease abounds, was 
injected into the circulation. The liquid was used in an entirely 
undiluted state, and was derived from the lungs of animals just 
slaughtered. In performing the operation, the greatest care was 
taken to avoid the entering of the infecting liquid into the 
cellular tissue. The other animal was inoculated subcutaneously 
by injection into the cellular tissue. This case was also care- 
