326 



extent the immunizing power of red corpuscles loaded with antibodies 

 is related to that of normal cells as to the tropin- and the aggiutinin- 

 content of the serum. We may suppose, also in consequence of the 

 above mentioned experiments, that the content of antibodies of serum 

 and subcutaneous lymph goes parallel and so we shall not investigate 

 this point separately. 



IV. After the immunisation with sensitized erythrocytes the one 

 with mixtures of serum and anti-serum comes next. I have not 

 stated the amboceptortitre (to be stated by means of complement 

 fixing) but the precipitincontent. Where the results do not differ 

 much from the experiments with sensitized erythrocytes, I think I 

 can suffice with only stating the precipitin. 



]A Rabbits, injected intravenously with horseserum, 0,5 c.c.m. per 

 kg. (m.ade inactive). 

 Rabbit weight titre after 3 days after 5 days after 7 days after 12 ds. after 14 ds. 



103 2600 _/^gs\ — /^£\— /^S\ Vioo Viooo 



104 2850 _l|g|i — ia|/~is|/ Viooo weak Viooo 



105 2850 _^^^^V - \'ll\~ Vl\ '/i°oo " ^'^''' 



106 1650 — fS I ^ \ — /-a Ë \ — / § i 1 Vioo Viooo weak 



107 2100 — \^.g/ — \^/— \.^/ Viooo weak Vicoo 



IB. Rabbits injected, intravenously with 0,5 c.cm. liorseserum 

 (inactive) + 1 c.cm. precip. serum (Viooo)' after this mixture had 

 stood for 1 hour. 

 Rabbit weight titre aft. 3 days after 5 days after 7 days aft. 12 days aft. 14 days 



108 2150 — /^ S 2\ ~ I o a ) Viu Vioo Vioo 



109 2150 — laSSj — \i| Vio Viooo Viooo 

 119 1850 — \'^^ '^^S _N»_i still sume > Vioo Viooo 

 111 1850 /•'^ i!2-^l r^^l — ^ horse serum \ 1/ 



w o 



1000 /I 000 



1000 



112 2150 — \ ""-.£' — ^ -^^ Viü weak Viooo weak 



So here we do not see a distinct difference between the A and B 

 group. 



II A. Rabbits, injected intraperitoneally 0,4 ccm. human serum 



per kg. 



Rabbit Weight after 5 days aft. 7 ds. aft. 10 ds. aft. 12 ds. aft. 14 ds. 



67 2150 — / s\ — Vio Viooo Vio^oo 



78 2450 — U |/ — Vio Vioo Viooo weak 



70 1900 — |l ^/ — Vio Vioco Vioooo 



60 2320 — ig |\ Vio? ^I\m Viooo Vioooo 



76 1820 — ( ^) Vio Vioo Viooo Vioooo 



II B. Rabbits injected similarly 0,4 ccm per kg. + 3,6 ccm. 

 antiserum ('/.«„o largely). The mixture had stood for 4 hours, a thick 

 precipitate has been formed. 



