334 BUREAU OF AMERICAN ETHNOLOGY [bull. 52 



Sergi accepts Ameghino's main contentions without question and 

 utilizes the Argentine finds, altogether too readily, in support of Ms 

 theory of polygenism,^ formulating on their basis a new classification 

 of the human family. 



Buschan enumerates the principal finds of Ameghino,- and reviews 

 the "Le Diprothomo i)latensis" in his periodical.^ He accepts appar- 

 ently the Ameghino reports as for the most part satisfactory, hesitat- 

 ing only in regard to the American origin of man in general and to 

 the continuation in America of the human line from the "precursors" 

 to the Indian. 



Senet pubhshes a resume of the Amegliino finds relating to early 

 man,"* without critical consideration. 



In the early part of 1910 the specimen is again spoken of by 

 Sergi,^ who as before accepts in the main Ameghino's conclusions and 

 bases on the existence of the Diprothomo and other ancient remains 

 of South America a special classification. The Tetraprotliomo and 

 Diprothomo constitute together parts of the genus Proanthropidse, 

 family Homunculidx. 



At about the same time the principal Argentine finds, including the 

 Diprothomo, are given, as if they were estabHshed cases, by L. Wilser.® 



On the occasion of the Seventeenth Congress of Americanists, held 

 in Buenos Aires in May, 1910, while the subject was being stucUed by 

 the present writer, the Diprothomo skull was examined also by A. 

 Moclii, and liis conclusions have since appeared in a brief publication.' 

 Moclii declares that "from the commencement of my study of the 

 specimen I became convinced that the major part of the character- 

 istics attributed to tliis new genus depend strictly on the orientation 

 given the fragment by Ameghino and were based solely on a complex 

 of subjective views." The specimen was brought, by the help of the 

 remaining orbital parts, into a more natural position, and as a result 

 it "acquired a thoroughly human physiognomy." Nevertheless the 

 skull presents a number of characteristics, "such as the extreme low- 

 ness of the vault, the form of the orbital arches and the glabella, 

 perhaps the direction of the coronal suture, the small inclination 

 backward of the nasal apophysis of the frontal bone, etc., on account 

 of which we can consider it as representmg a ([uite particidar human 

 type, and one so much more interesting in proportion (subject to 

 contrary proof), as it is considered to have come from a geologic 



1 Sergi, G., L'apologia del mio poligenismo; in Atli Sov. rom. antr., xv, fasc. 2, Roma, 1909, pp. 

 187-195. 



- Buschan, G., Das Alter des Menschen in Amerilta; in Die Umschau, xiii, 1909, pp. 940-9,50. 



3 Buschan, G., in Zentralblattfur Anthropologic, xiv, Braunschweig, 1909, pp. 368-371. 



< Senet, U., Los ascendientes del hombre segiin Ameghino; in Bolctin dc la Instruccidn Pvblica, ii, No. f>, 

 Buenos Aires, pp. 1-52. 



6 Sergi, G., I'algontologie sud-Am6ricaine; in Scicntia, viii, Bologna, 1910, pp. xvi-J. 



6 Leben und Ileimat des Urmenschen, Leipzig, 1910, pp. 17-22. 



' Mochi, A., Nota preventiva sul Diprothomo platensis Ameghino; in Rcvista del Musco dc la Plata, xvii, 

 Buenos Aires, 1910, pp. 09-70. 



