RECORDS OF THE GEOLOGICAL COMMITTEE 

 OF THE RUSSIAN FAR EAST. 



No. 16. P. P. Goudkoff. A scheme of instructions for 

 the sampling and registration of materials relative to 

 ore deposits. No. 14. E. E. Ahnert. Annual report on 

 geological research in 1919. No. 11. A. N. Kryshto- 

 fovich. Some tertiary plants of Possiet-Bay. No. 15. 

 A. N. Kryshtofovich. Tertiary plants from Amagu river in 

 Primorsky Province. No. 12. 7. Hayasaka. On a collection 

 of the cretaceous fauna from Eussian Sakhalin. No. 13. 

 A. N. Kryshtofovich. Eeport on the results of studies in 

 Japan : — 



The Geological Committee of the Eussian Far East, 

 residing in Vladivostok, in spite of the very difficult con- 

 ditions in which the Eussian scientists have to work at 

 present, endeavours to promote by all ways and means a 

 scientific gathering of materials concerning geology and 

 useful minerals of the Eussian Far East and embraces in 

 its explorations the Island Sakhalin and Japan. The col- 

 lected materials are being published by the Committee 

 and 24 books have appeared up to the present moment. The 

 titles of some of them are given in the beginning of this 

 article. 



P. P. Goudkoff designed a scheme of instructions for 

 recording of materials relative to ore deposits. For valua- 

 tion of probable stocks of a mineral it is nceessary to have 

 an idea in which way the formation of this ore deposit took 

 place and what were the conditions which caused the ap- 

 pearance of special geological and chemical properties being 

 typical for the said deposit. In consideration of the above, 

 besides a detailed description of an ore deposit itself, 

 information regarding a general geological structure of the 

 district, in which the ore deposits have been discovered, 

 should be obtained and these practical data will indicate 

 the signs, facilitating the task of a new search for minerals 

 in this district. The author has worked out a series of 

 questions, the answers to which must be especially collected 

 by the members of the Geological Committee and published 

 periodically. The realization of such a scheme would be, 

 without doubt, very useful as much to the practical mining 

 men as to the scientists. 



E. E. Ahnert in his annual report of geological research 

 in 1919 gives a circumstancial account of the results of 



