1870.] MR. GULLIVER ON THE BLOOD-CORPUSCLES. 93 
Times and Gazette’ from August 1862 to December 1863, and in 
the ‘ Proceedings’ of this Society for February 25, 1862. 
In the subjoined woodcut are represented dried red blood-disks of 
four Mammalia, to wit:—1l. Tragulus javanicus; 2. Moschus mos- 
chiferus ; 3. Cervus alces; 4. Orycteropus capensis. Figures 1 and 4 
show specimens of the smallest and largest of these corpuscles yet 
known among Mammalia; and figures 1, 2, and 3 some marked 
differences in the size of the corpuscles of Ruminantia. 

4000ths. (__1 1 n 1 sy bel eayoeld Sh » 1 | of anInch. 

Red Blood-Corpuscles. 
Fig. 1. Tragulus javanicus. Fig. 3. Cervus alces. 
2. Moschus moschiferus. 4, Orycteropus capensis. 
Moschus moschiferus.—Through the courtesy of Professor Flower, 
I have examined the blood of the female of this species that died at 
the Zoological Gardens on the 26th of October, 1869; and the 
result affords an interesting complement to or illustration of my ori- 
ginal observations on the blood-disks of Tragulidze and some other 
Ruminants. Their mean size in Cervus alces is +, of an inch. 
Of the blood-disks of Moschus moschiferus, the report to him of my 
examination was to the effect that this species appeared to be no near 
relation to those three ‘‘ Musk-deer”’ of which I had formerly exa- 
mined the blood, that M. moschiferus could hardly belong to the 
same genus as that which includes those three species, and that 
there was no appreciable difference of size between the blood-disks 
of M. moschiferus and those of Cervus nemorivagus. 
From thirty-one measurements of the red blood-corpuscles of 
Moschus moschiferus their average diameter was found to be -j4> 
of an inch; and an independent measurement by Professor Flower 
and Mr. Moseley made them closely of the same size. The extreme 
sizes observed by me were <2, and =, of an inch. And thus, 
with this animal, the Ibex, Brocket-deer, and Tragulus, my observa- 
tions show that we have three or four genera at present known with 
blood-disks smaller than those of the Goat. 
Though these corpuscles of Moschus moschiferus are so small as 
at once to declare the Ruminant order to which this animal belongs, 
they may be seen at a glance to be at least a third larger than those 
of Tragulus, and little more than half the size of the blood-disks of 
Cervus alces. And how close is the correspondence in this respect 
