504 



MITZMAIN. 



Table X. — Successive feeding of Stomoxys from infected to healthy 



animals. 



Length of 



time after 



the last 



infective 



meal. 



Healthy 



host em- 

 ployed, 

 monkey — 



Number 

 of flies 

 applied to 

 healthy 

 animal. 



Number 

 of flies 

 biting 

 healthy 

 animal. 



Length of 



time after 



the last 



infective 



meal. 



Healthy N-ber 

 ^iri!^" applied to 



Number 

 of flies 

 biting 

 healthy 

 animal. 



Days. 

 1 



2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 



C 

 D 

 E 

 F 

 G 

 H 

 I 

 J 

 K 

 N 

 

 P 

 Q 

 S 

 T 



190 

 134 

 123 

 113 

 98 

 70 

 65 

 56 

 52 

 49 

 46 

 43 

 32 

 24 

 24 



182 

 115 

 114 

 100 

 93 

 68 

 60 

 53 

 49 

 45 

 35 

 28 

 24 

 21 

 22 



Days. 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 



c 



D 

 F 

 B 

 K 

 L 

 N 

 

 P 

 T 

 U 

 X 

 G 



23 22 

 22 19 

 22 21 

 20 20 

 18 16 

 14 13 

 14 12 

 14 12 

 14 10 

 14 14 

 12 11 

 10 7 

 6 5 









1 



Table XI. — Successive feeding of Stomoxys from infected to healthy 



animals. 



Length 

 of time 



after 

 the last 



Infec- 

 tive 



meal. 



[Number 



Healthy host 1 ^^^jflj 

 employed, ^F' 

 monkey- ^^^^^^^ 



animal. 



Number 

 of flies 

 biting 



healthy 

 animal. 



Length 

 of time 



after 

 the last 



infec- 

 tive 



meal. 



Healthy host 

 employed. 



Number 

 of flies 

 applied 



to 

 healthy 

 animal. 



Number 

 of flies 

 biting 

 healthy 

 animal. 



Days. 

 1 

 2 

 S 

 i 

 6 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 16 



M 



N 



O 



60 

 '60 

 64 

 44 

 36 

 34 

 29 

 26 

 23 

 18 

 18 

 14 

 12 

 12 

 9 



43 

 48 

 66 

 28 

 36 

 20 

 23 

 25 

 23 

 13 

 16 

 12 



9 

 11 



7 



Days. 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 



Monkey B 



Monkey C 



Monkey S 



Guinea pig 89-- 

 Guinea pig 84.- 

 Guineapiglll-- 

 Guineapig92._ 

 Guinea pig 99- 

 Guinea pig 60 -. 

 Guinea pig 110- - 

 Guinea pig 131.- 

 Guinea pig 88-- 

 Guinea pig 88,- 

 Guinea pig 88.. 

 Guinea pig 88.. 



8 

 5 

 4 

 4 

 4 

 2 

 2 

 2 

 2 

 2 

 2 

 2 

 2 

 2 

 2 



6 

 4 

 4 

 4 

 4 

 2 

 2 

 2 

 2 

 2 

 2 

 2 

 2 

 2 

 2 



P.. 



D- 



H 



J 



K 



L 



2N 



20 



2P . 



G 



2H- -. 



2J 







