32 Mr. G. Gulliver's Observations on the Blood Corpuscles 



ably distinct and characteristic, and I believe unlike any 

 hitherto described in the animal kingdom. They are generally 

 acutely pointed at the ends and gibbous in the middle: some- 

 times they are not curved, and then, to use a botanical term, 

 they present a lanceolate figure. A more particular descrip- 

 tion of them, with drawings, is in preparation. 



49. Napu Musk Deer, adult female, [Tragulus Javanicus^^). 

 Average size of disks 1-I2,000th of an inch. Extreme diameters 

 1-15, 000th and 1 -9600th. Blood examined from a prick of 

 the ear, also from a small vein of the \eg. 



Hence the blood disks of this beautiful litde animal are 

 smaller than those, hitherto described, of any other mammal. 

 They were remarkably distinct, and very well seen in dry 

 specimens, also diluted with serum or urine. 



50. Pig, about half-grown, [Sus Scrqfa). Common dia- 

 meters l-4000th and l-3728th. Extreme sizes l-5333rd and 

 I-3200th, and the corpuscles generally very variable. The 

 blood examined was arterial and venous mixed. 



51. Elephant, male, apparently an adult, {Elephas Lidicus). 

 Most frequent diameters of disks l-3000th, l-2666th, and 

 l-2462nd of an inch. Other sizes, l-3329th, l-2910th, 

 l-2823rd, and l-2286th. Blood obtained from a vein in theear. 



Consequently the blood corpuscles of this animal are larger 

 than any hitherto described in the mammalia, being consider- 

 ably larger than in man. But a reference to the compara- 

 tive magnitude of the blood disks of the horse and the bat, 

 and some species of Miis, will show how little relation there is 

 between the size of the animal and the diameter of the red 

 particles. In the mouse for instance they are larger than in 

 the horse. 



52. Rhinoceros, full-grown male, [Rhinoceros Lidicus), 

 Common size of disks 1 -4000th and 1 -2554th. Many were 

 observed with diameters of l-4572ndand l-3200th of an inch, 

 with of course every intermediate gradation of size. Blood 

 from a prick in the nose. 



53. Common seal (Fhoca vitidina\ 1 -3200th the most fre- 

 quent diameter. Extreme sizes 1 -3554th and 1 -2666th. The 

 disks very regular in size. Blood from prick of caudal fin. 



The particles are slightly larger than in the adult human 

 subject, and approach in appearance to corpuscles of the 

 monkey's blood. 



* See Pliil. Mag. for Dec. 1839, and Dublin Medical Press, No. 47. 

 Moschus Javanicus of Pallas. Since my observation of the singular blood- 

 disks of this animal was published, Professor Owen has given an account 

 of them in another species {M.jjj/gmissus), in which they seem to be equally 

 small, as he remarks he had anticipated. 



