THE ORIGIN OF THE INDIVIDUAL/'^ 



ON THE IMITATION OF PROTOPLASM 



BT 



PROF. A. L. HERRERA, M. S. A., 



Chief of the Commis^^:on of Parasitologj'. 



fPLATE i]. 



Bütsclili began the study of tliese subjects by prcparing 

 his artificial protoplasm witb carbonate of potassium and oil, 

 or oil and sugar. He obtained in íWkS way amaeboid move- 

 ments, vacuols and alveolar structure. Since tbe year 1897 I 

 have been making methodical researcbes on tbis subject. I ha- 

 ve accepted and rejected itiany theories successively and have 

 avoided all prejudice. I have obtained several imitatious of 

 protoplasm in the £ollo\ñng ways: 



1/' Mixture of compounds, after Reinke's analysis. Cnr- 

 rents of diífusion without structui'e or evolations. 



2/ Mixture of albumen of egg with oils; saponification 

 of the álcali, vacuoles, general appe'ai'ance of protoplasm, no 

 movements or evolutions. Lime water, albumen and oil affords 

 a reticulum and granulations very interesting. The same with 

 peptone, lime soap and albumen. 



3.'' Myelin of egg, brain, snail or vegetables gives many 



[1] See "Memorias de la .Sociedad Álzate." Loiigine des individus. 1899-1900. vol. 

 XIV, ].. 129. 



