26 Mr. G. Gulliver’s Observations on the Blood Corpuscles 
digestion ; but, in their deep-red colour and chemical pro- 
perties, they differ remarkably from the granules observed in 
the chyle. 
1. Dog-faced Baboon, hardly half-grown, (Smia Cynoce- 
plialus). Blood from the right ventricle of the heart. Cor- 
puscles generally 1-31 92nd of an inch in diameter; extreme 
sizes l-4000th and 1 -2666th of an inch, the largest more fre- 
quent than the smallest. 
2. Gveen^oukey, {CercopithecusSabceus), Average- 
sized corpuscles l-3200th to l-3000th of an inch in the dry 
state, 1 -3600th in their own serum. Extreme sizes 1 -4000th and 
l-2666th. Thickness of the corpuscles as seen on their edges 
l-12,000th to l-10,000th of an inch, i. e. a rouleau of five or 
six filled two of the micrometer spaces. The blood examined 
was obtained from both ventricles of the heart, from the vena 
cava, and vena portae, no appreciable difference appearing in 
the corpuscles. 
3. White Monkey, adult, {Macactis radiatus, albino var.). 
Corpuscles from the right ventricle generally 1-3 200th of an 
inch in diameter. 
4. Rhesus Monkey, old male, {Macacus Rhesus), Size of 
disks very variable from 1-45 72nd to 1 -2666th of an inch: most 
common diameter l*3200th. Blood of both ventricles exa- 
mined. 
a. In a young male the same measurements were obtained. 
5. Capuchin Monkey, adult, {Cebus Capucinus), Most 
common diameter of corpuscles 1 -3428th and l-3200th of an 
inch dried ; in their serum, exposed to the air some hours, 
l -4000th was a more frequent diameter. Extreme diameters 
1 -4572nd and 1-29 10th of an inch. Blood from both ventricles 
of the heart examined. 
6. Mangabey Monkey, adult male, (Cercocebus JRthiops), 
Common sizes l-3200th and 1 -3000th. Extreme sizes, also 
common, l-4000th and l-2666th. Blood examined from both 
ventricles of the heart, from the portal and renal veins. 
7. Grivet yiou]<.Qy, [Cercocebus griseo-viridis). Most fre- 
quent sizes l-3200th and 1 -3000th. Extreme diameters 
1 -4000th and 1 -2666th of an inch. Blood from both ven- 
tricles of the heart. 
8. Slow Lemur, full-grown, {Loris tardigradus). Most 
common size l-3552nd. Extreme diameters l-4000th and 
1 -3000th. Blood from a prick of the fore-hand. 
9. Common Bat, {Vespertilio murinus). Blood from right 
ventricle, Common diameter of corpuscles l-4365th to 
l-4000th of an inch. 
10. Common Scjuirrel, adult male, {Sciurus vulgaris). Cor- 
