hhdliCka] stone industries OF THE AEGENTINE COAST 107 



Furthermore; I have observed that in the upper level the Pampean 

 surface corresponds, even more than at Arroyo Corrientes, to the 

 type of detritic accumulation, for among its component elements 

 are fine sand, triturated fragments of shells, and rolled pieces of loess 

 of dark-gray color. Surrounded by precisely these materials was 

 found the carapace [^] of Sclerocalyptus pseudornatus Ameghino.^ 



"All the specimens attributable to the supposed new industry 

 were found, as at Arroyo Corrientes, distributed superficially. 



"The third locality in the department of Pueyrredon is situated 

 at the distance of approximately a kilometer from the left bank of 

 the Arroyo Chapadmalal. On the sand which covers the surface of 

 the elevated platform, formed by oceanic erosion, which constitutes 

 there the Bonaerean Atlantic coast, or distributed superficially over 

 smaller areas where the vegetal soil is wanting and the sand is being 

 reduced (in place of which there appears a calcareous deposit, called 

 tosca, which covers as it seems a large part of the region), I obtained 

 29 very characteristic examples of the worked stones. In this case 

 the special circumstances of the find are of great importance. The 

 objects referred to were not isolated, as in the two previously men- 

 tioned localities, but associated and moreover mixed with a multi- 

 tude of examples of flakes, knives, scrapers, etc., made of quartzite, 

 or flint, and belonging to the well-known litliic industry, wliich is so 

 little primitive in its characteristics that it occurs with considerable 

 frequency in nearly all the Bonaerean culture-sites, even in those on 

 the very surface of the land, as well as in those enveloped by the 

 vegetal soil, especially along the borders of streams and on lake 

 shores.^ 



"Finally, there are two other localities where these specimens 

 occur in the department of General Alvarado, both on the right 

 bank of the Arroyos Brusquitas and Durazno, respectively. 



"In the former of these localities I found four isolated specimens 

 on the sand which covered the surface of a small torrential gully or 



P The Punta Porvenir specimen mentioned above by Ameghino.] 



2 "Thie small excavation made [by Ameghino] in extracting the carapace of this Sclerocalyptus pseudor- 

 natus was still visible when I made ray last visit to the locality in March of the present year and I was 

 able to obtain samples of the soil which inclosed numerous isolated remaining plates from the carapace." 



^ "Notwithstanding the bad weather and the misty and persistent rain, which formed an obstacle to my 

 stay, I was able to gather on the great culture-site of which I speak, about 822 diverse objects: Flakes, 

 knives, scrapers, and arrow points; but I did not find any fragment of pottery. Nevertheless, Don 

 Carlos Ameghino told me that in other paraderos also near to the mouth of the Arroyo Chapadmalal, frag- 

 ments of plain earthen vessels are sometimes found. 



"The specimens which I gathered, nearly all worked on only one surface, belong, as I said above, to one 

 of the most dilfused neolithic industries in the Province of Buenos Aires and of which Dr. Florentino 

 Ameghino made known many types and varieties (if a multitude of unstable forms can so be termed) in 

 one of the most classical of his works ( La antigiiedad delhombreen El Plata, i, 213-267, Paris-Buenos Aires, 

 lSSO-1881). There is also an identity between the examples which form my large series and those that were 

 described many years ago by Dr. Francisco P. Moreno (Noticias sobre antigiiedas de los Indios del tiempo 

 anterior k la conquista, etc., in Boletin de la Academia Nacional de Ciencias de Cordoba, i, Buenos 

 Aires, 1874, pp. 130-149); and they are also identical with some mentioned by myself in a memoir published 

 in 1897 ( F. F. Outes, Los Querandles, breve contribuci6n al estudio de la etnografia argentina, 87-91 figuras 

 1-4, Buenos Aires, 1897).'! 



