The specific oxygen capacity of blood 13 



Nuttallia equi Horse III. 



The Horse was inoculated subcutaneously with 20 c.c. of defibrinated blood taken from the jugular 

 vein of Horse II at mid-day on 2. vin. 1910. Horse III had previously been infected with Piroplasma 

 caballi on 22. vi. 1910, but had recovered (see Protocol of P. caballi Horse II). N. equi appeared in the 

 horse's blood on the 10th day, and it died at 5.30 p.m. on the 20th day after inoculation (21. vni. 1910). 



Temp. F. 



Day M. E/ 



1 97-8 Inoculated. 



2 98-2 



3 98-2 



4 97 ' 2 Oxygen Leuco- 



5 98-2 capacity cytes 



R.b.c ofhaemo- per 



6 99 "0 per c.mm. globin c.mm.* 



7 98-2 8,888,000 0'227 8,640 



8 98-2 8,872,000 0'230 12,900 



9 97-4 8,968,000 0'222 7,120 



10 100-4 Parasites appeared 9,155,000 0'240 7,800 



% r.b.c. 



infected (S) (L) (D) (24) F 



10 102-0 0-2 34 65 1 



11 103-0 3-0 23 75 1 0'4 9,004,000 10,650 



104-2 2-0 43 50 4 2 Horse weak. 



12 104-2 Horse weak, jaundice; off 7,240,000 0-230 9,540 



106-6 11-6 23 70 3 41 his food. 



13 105-0 10-3 47 45 0'6 2 5 Very weak; haemoglobin- 5,390,000 



104-6 6-8 50 43 2 32 uria; blood appears watery, 



coagulation retarded. 



14 103-0 8-4 56 38 0'2 4 1 Bather better; feeding better, 5,365,000 0'141 12,000 



101-7 10-6 62 33 2 21 haemoglobinuria. 



15 100-6 5-2 31 65 1 3 0-4 Ditto; urine smoky. 4,812,000 0'104 7,520 



102-4 7-4 28 66 0'6 5 0-6 



16 102-4 9-2 15 80 0-6 3 0'2 Very weak, especially hind 3,840,000 0-115 9,700 



100-8 6-8 35 57 1 41 legs, which are stretched 



apart. 



17 103-0 8-0 19 75 1 3 0'2 Seems better, feeding; swell- 3,848,000 0'104 13,500 



103-0 12-8 28 67 2 3 ing on jaw (abscess). 



18 103-0 8-6 25 69 1 4 0'3 Weak ; jaundice persists. 3,230,000 O'lOO 22,600 



102-2 13-2 20 73 2 5 



19 103-2 6-6 23 74 1 2 Very weak, lying down. 3,120,000 0-066 33,600 



101-0 4-8 20 75 1 4 <- 



20 98-4 8-4 29 53 2 11 6 Helpless, urine smoky; leading 



found dead at 5.30 p.m. SS^of 3 



1 c.c. of 

 * Average number of counts = 5. blood in c.c. 



The signs denote corpuscles containing 



(S) = small and medium sized piriform or oval parasites. 



(L) = large rounded parasites. 



(D) = dividing and cross-forms. 



(2-4) = two or more parasites. 



F = free forms. 



