TEKTITES — BEYER 259 



hoped that constructive criticism by qualified contemporaries may 

 soon demonstrate whether or not this latest explanation of tektite 

 origin can stand the test and take its place among the few most ac- 

 ceptable theories accounting for these strange bodies. 



POSITION OF THE PHILIPPINES IN RELATION TO TEKTITE STLTHES 



Up to last year, the present writer and Dr. Siguel Selga, S.J., of 

 the Weather Bureau, were the only local students to take a serious in- 

 terest in tektite studies, but, since the middle of 1938, Mr. J. Van 

 Eck, of the Marsman staff in Paracale, has been making some very 

 interesting observations on the physical history and characteristics 

 of the Bikol tektites. A monograph by the writer, covering the re- 

 sults of some 12 years' active study and collecting of Philippine 

 tektites, since the first specimen was found in 1926 in a Rizal Province 

 archeological site, will be ready shortly for publication. However, 

 in view of the unique opportunity that the Philippines present for 

 the study of the richest known deposits of tektites in their natural 

 environment, it is to be hoped that other local scientists may soon take 

 a greater interest in this subject; and it is with the hope of stimu- 

 lating such interest that I am presenting the present outline of the 

 subject at this meeting and to the Philippine National Research 

 Council. 



REFERENCES 



Lists of the most important tektite literature, containing the full citations of 

 the principal papers by Suess, Verbeek, Van der Veen, Summers, Michel, Lacroix, 

 Spencer, Fenner, von Koenigswald, and tlie writer, together with important 

 chronological items by Streich, Walcott, Twelvetrees, Krause, Dunn, Grant, 

 Goldschmidt, Easton, Escher, Paneth, David, deBoer, Selga, Martin, Janoschek, 

 Koomans, Opik, La Paz, Kaspar, Heide, and others, as referred to in the Beyer 

 and Ruf us papers, will be found under the following titles : 



1. Suess, Fbanz E. 



1900. Die Herkunft dor Moldavite und verwandter Glilser. Jahrb. Geol. 

 Reichsanst., vol. 50, pp. 193-3S2, 8 pis., 60 text figs., and bibl. 

 of 55 titles. 



2. Suess, Feanz E. 



1901-1914. Riickschau und Neueres iiber die Tektitfrage. Mitt. Geol. 

 Ges. Wien, vol. 7, pp. 51-121, 3 pis., and new bibl. 



3. Laceoix, a. 



1932. Les teetites de I'Indochine. Arch. Mu.s. Hist. Nat., scr. 6, vol. 8, 

 pp. 193-236, 43 text figs., and bibl. of 32 titles. Paris. 



4. Fenner, Charles. 



1934, 1935, 1938. Australites. Trans. Roy. Soe. South Australia, pt. 1, 

 vol. 58; pt. 2, vol. 59; pt. 3, vol. 62; 8 pis., many text figs., and 

 bibl. of 125 titles in pt. 3. 



5. Beyeb, H. Otley. 



1939. A bibliography of tektites. Manila. Lists 450 titles, with brief 

 al)stracts and critical notes. 

 501591 — 43 18 



