252 
CONTRIBUTIONS TO THE PATHOLOGY AND 
globules were the most numerous in the blood obtained from the 
mesenteric veins, the omental, and from the cavities of the heart. 
In the omentum and mesentery they appeared to be as numerous 
as the blood globules themselves; they were also very numerous 
in the portions obtained from the liver, the posterior vena cava, 
and the spleen. The colour of the blood itself was of a black or 
blue green. 1 also examined blood from the lungs, and in it they 
were very numerous also. The pus from the guttural pouches 
seemed to consist for the most part of the pus globules unchanged ; 
while in those specimens of pus obtained from the other deposits 
the pus granules were the most numerous; a fact which I cannot 
account for, unless such difference was caused by the pus itself 
being of thinner consistence than that contained in the pouches. 
Remarks .—In concluding the remarks contained in my last Con¬ 
tribution, the reader will most probably remember that I made 
some observations upon the existence of “General Phlebitis’’ in 
the horse. In these remarks I stated, that though this peculiar 
affection had hitherto been entirely overlooked by veterinary 
writers, yet that 1 considered it to be far from an uncommon disease. 
The present Contribution will be found to furnish a genuine case 
of this nature. It is, I believe, the only one of its kind on record. 
In presenting it, I have somewhat departed from the course which 
I marked out to pursue; but I deemed it of such importance as to 
merit an early publication, particularly as I had alluded so point¬ 
edly to the disease in my last* Local phlebitis, or inflammation 
of one of the jugular veins of the neck, from bad management in 
bleeding the horse, is a matter of common occurrence, and which 
is treated upon by most veterinary authors; but with respect to a 
systemic state of this disease, induced by the presence of morbid 
secretions in the blood, the reader will not find a single remark 
having the most distant reference to it in any one of them. How 
it is that a disease possessing the character and importance which 
the one in question does should hitherto have escaped the observa¬ 
tion of every veterinary writer, is a question which I shall not, at 
present, stay to determine. 
The case here given presents to the scientific pathologist many 
questions worthy of his close attention. Those which I propose to 
consider in the following remarks are, 
• 
the microscope with veterinary surgeons has hitherto been shamefully ne¬ 
glected ; I cannot learn, in fact, that it has ever been used at all by them. 
I would strongly recommend every scientific practitioner to purchase one. 
The instrument I use is an achromatic one, of very excellent defining power. 
It was made by Mr. George Creasor, optician, of Meltham, near Hudders¬ 
field; a maker who l have great pleasure in recommending, both with respect 
to the price and the quality of his instruments. 
