98 The Unity of the Organism 



As another L'xani})le the table for the crystals of B-oxy- 



hemoglobin from the baboons of the genus Papio is chosen. 



These all belong to the monoclinic system and all except 



those from the Guinea Baboon (P. sphinx) are optically 



positive. 



Prism 



Name of species Axial ratio Angle B angle 



Yellow liahooii {Papio babaiii) l.()808:l:c' 72° 73' 30" 118 30' 



Guinea Hahoon {P. sphinx) 1.8418:1 :c' 70° 123 0' 



LoiiiT-arined Baboon (P. Lanyheldi) 1.655 :l:c' 70° 30' 117 44' 



Chacina (P. porcarius) 1.732 :l:c' 75° 120 0' 



Anubis {P. anubis) 1.737 :l:c' 72° 30' 120° 11' 



So far as one with little knowledge of crystallography 

 may judge the numerous tables of which these two are sam- 

 ples, the copious illustrations many of which are from pho- 

 tographs, and the discussions, seem to justify fully the 

 generalizations above quoted, with others to which no ref- 

 erence has been made. It would however be quite wrong to 

 gain the impression that the very positive conclusions as to 

 the specificity of hemoglobin crystals reached b}^ these 

 authors is in accord with all researches that have been made 

 on the subject. Summing up their rather extensive re- 

 view of studies previous to theirs, the authors say : "Equally 

 expert obsei'^ers working w^ith blood of the same species 

 have arrived at very different conclusions as to the specific- 

 ity or non^specificity of hemoglobin crystals in relation to 

 species, some claiming that the crystals are occasionally 

 s}>ecific, others that they are always specific, and others that 

 they are not specific because the same blood may yield crys- 

 tals of very different forms and that the differences are 

 probably accidental. Crystals of various colors and vary- 

 ing forms have been obtained from the same blood." ^^ 



A highly significant thing that comes from considering 

 the results reached by those students who have opposed the 

 idea of specificity of hemoglobin from different kinds of 

 animals, is not that they claim that all hemoglobin crystals 



