138 NAVICULARTHRITIS. 



It must appear strange that such a formidable disease as this 

 should so long have escaped detection, and, particularly, as the 

 foot of the horse has been a subject of so much investigation. I 

 can only say, that in my own dissection was the first time I ever 

 saw the disease ; that I never heard of it, and that T never was 

 taught it. If some practitioners have occasionally met with in- 

 stances, it appears they have been put by, as cases of rare occur- 

 rence. The unfortunate animal is suffering perpetual pain from 

 these delicate surfaces coming in contact, which were never in- 

 tended by Nature to have touched each other. By the loss of the 

 synovia at this important part these highly sensible surfaces are 

 not only in contact, but, when the animal is in action, they are ac- 

 tually rubbing against each other ; and, to make his misery the 

 more complete, they happen to be immediately under the centre of 

 his weight. 



James Turner, 

 Veterinary Surgeon, Croydon. 



Twelve years after having communicated to Messrs. Coleman 

 and Sewell the results of his researches into the morbid causes of 

 " groggy lameness," i. e. in 1828, Mr. Turner read a paper on 

 the subject before the Veterinary Medical Society*: prefacing it 

 by stating that it was a " copy of the above-mentioned com- 

 munication, with this reservation — that although twelve years' 

 experience in active practice since that period had induced him to 

 draw some other inferences which may not exactly accord with 

 the first impressions, yet they will seem to harmonize in the aggre- 



* This paper was published in The Veterinarian for February 1829, 

 and was followed by a second paper " On the Symptoms and Cure of the 

 Navicular Disease," read December 4th, of the same year, and published in 

 The Veterinarian for January 1830, Both these papers, together with 

 some observations on shoeing — also published in The Veterinarian — were, 

 with additional remarks, collected into a work, published in 1832, well 

 known to the profession, under the title of " A Treatise on the Foot of the 

 Horse," &c.&c. By J. Turner, M.R.C.V.S., London, 1832. 



