﻿296 



STRONG. 



Series 58. — Showing passage of the strain "Pest Virulent" from guinea pig to guinea 

 pig through 247 animals by cutaneous inoculation from the spleen of one animal to the 

 abdomen of the next without growth on artificial media. 



No. of 

 pas- 

 sage. 



Animal 

 No. 



Date 

 inocu- 

 lated. 



How inoculated. 



Date of 

 death. 



Num- 

 ber of 

 days 

 lived. 



Culture from 

 heart. 



1220 



1221 

 1243 

 1276 

 1297 

 1323 

 1324 

 1354 

 1355 

 1356 

 1383 

 1384 

 1435 

 1436 

 1437 

 1451 

 1452 

 1471 

 1472 

 147* 

 1480 

 1495 

 1496 

 1497 

 1498 

 1514 

 1515 

 1516 

 1517 

 1557 

 1579 

 1580 

 1588 

 159*1 

 1592 

 1606 

 1607 

 1610 

 1612 

 1625 

 1627 

 1630 

 1631 

 1632 

 1634 

 1635 

 1643 

 1645 

 1646 



Oct. 8 



Oct. 10 

 Oct. 14 

 Oct. 19 

 Oct. 24 

 Oct. 30 



____ do... 

 Nov. 2 



____ do... 



... .do... 

 Nov. 7 



....do-. 

 Nov. 13 



____do__. 

 Nov. 14 

 Nov. 16 



.... do__. 

 Nov. 17 

 Nov. 19 

 Nov. 20 



....do... 



Nov. 24 



... _do__. 



Nov. 27 

 _— do — 



Nov. 30 

 Dec. 3 

 Dec. 4 



....do ... 

 Dec. 7 

 Dec. 10 



—do... 

 Dec. 13 

 Dec. 15 

 Dec. 16 

 Dec. 19 

 Dec. 20 

 Dec. 22 

 Dec. 24 

 Dec. 27 

 Dec. 28 

 Dec. 31 



—do... 

 Jan. 3 

 Jan. 4 



.... do... 

 Jan. 6 

 Jan. 7 



—do... 



1 oese 'Pest Virulent" subcutane- 

 ously. 



Spleen 1220 



Spleen 1221 



Spleen 1243 



Spleen 1276 



Spleen 1297 



do 



Spleen 1324 



do 



do 



Spleen 1356 



do 



Spleen 1383 



do 



Spleen 1384 



Spleen 1436 



do 



Spleen 1437 



Spleen 1452 



Spleen 1451 



Spleen 1471 



Spleen 1479 



Spleen 1472 



Spleen 1495 



Spleen 1480 



Spleen 1496 



Spleen 1497 



Spleen 1498 ... 



Spleen 1514 



Spleen 1515 



Spleen 1557 



Spleen 1517 



Spleen 1516 



Spleen 1580 



Spleen 1579 



Spleen 1591 



Spleen 1588 



Spleen 1592 



Spleen 1607 



Spleen 1610 



Spleen 1612 



Spleen 1606 



Spleen 1625 



Spleen 1627 



Spleen 1630 



Spleen 1631 



Spleen 1632 



Spleen 1634 



Spleen 1635 



Oct. 10 



Oct. 14 

 Oct. 19 

 Oct. 24 

 Oct. 30 

 Nov. 2 

 .... do — 

 Nov. 7 

 Nov. 10 

 Nov. 7 

 Nov. 13 

 Nov. 14 

 Nov. 16 

 .... do... 

 Nev. 17 

 Nov. 20 

 Nov. 19 

 Nov. 20 

 Nov. 24 



....do 



Nov. 27 

 ....do... 

 Nov. 30 

 Dec. 3 

 Dec. 4 

 .... do... 

 Dec. 7 

 Dec. 13 

 Dec. 10 

 .... do... 

 Dec. 16 

 Dec. 15 

 Dec. 20 

 Dec. 19 

 Dec. 22 

 Dec. 31 

 Dec. 24 

 Dec. 27 

 Dec. 28 

 Dec. 31 

 Jan. 3 

 Jan. 4 



do 



Jan. 6 

 Jan. 7 

 .... do — 

 Jan. 10 

 Jan. 9 

 .... do___ 



Bacillus pestis. 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 



