Anti- Human Serum 



165 



Layton (1903, pp. 219, 220) has treated rabbits according to Uhlen- 

 huth's method and produced anti-human serum. He tested 28 bloods 

 (species not stated) and was able to identify human and exckidc monkey 

 bloods 



825 Tests ivith Anti- Human Serum. 



The following tests were carried out by means of 5 different anti- 

 human sera obtained by treating rabbits with the blood of Europeans. 

 All the sera were powerful, being freshly prepared in succession, so that 

 when the one began to weaken another was substituted^. 



Eeactions 



97 Primates 



Aitthropoidea 

 34 Human (4 races) 



8 Simiidae (3 species) 

 36 Cercopithecidae 



(20 species) 3 



13 Cebidae (9 species) 3 



4 Hapalidae (3 spec.) 2 

 Lemuroidea 



2 Lemuridae (2 spec. ) 2 



29 Chieoptera 26 



15 Insectivora 13 



97 Carnivora 70 



6-5 rodentia 53 



70 Ungulata 40 



3 Cetacea 



13 Edentata 12 



26 Marsupialia 25 



1 Monotremata 1 



320 AvES 319 



49 Reptilia 49 



14 Amphibia 14 



19 Pisces 19 



7 Crustacea 7 



3(8 7o) 7(2io/o) 



(8 „) 

 (23 „ ) 



/o 



24 (71 7o) if'^* 

 8 100 



4 (10 „ ) 92 

 78 

 50 







10" 



13 



27 



18 



43 



100 



7 



4 







03 • 



















r2^7o 



•2»/o 



The preceding table shows maximum 7'eactions only amongst 

 the Hominidae, Simiidae, and Cercopithecidae. In the case of the 

 last only 4 bloods gave a maximum reaction, in two the precipitum 

 was moderate in quantity, in two it was voluminous, in fact almost 

 equal in quantity to that observed in the reactions with human 



' Layton added -5 "/q carbolic acid to his antiserum. 

 '■'■ See p. 144 regarding the strength of antisera. 



