234 retort — 1884. 



Sweden. 

 Sveriges Oeologisha Undersokning (Stockholm). 1 



This survey was commenced in 1858 with Alex. Erdmann as director. 

 In 1869-70 the director was A. E. Tornebohm ; he was succeeded in 

 1871 by the present director, Otto Torell. 



The staff consists of twelve geologists, with some additional assistants 

 during the summer months. x_-_x 



The survey is made on two scales ; in the more populous districts, 

 1 • 50,000 ; in the mountainous districts, 1 : 100,000. In the former 

 case the maps are published on that scale, in the latter the publication is 

 on the scale of 1 : 200,000. 



The meridian is Stockholm, 18° 3' E. of Greenwich. The maps are 

 not contoured, but numerous heights are given in Swedish and Nor- 

 wegian feet (=12-35 English inches). 



The publications date from 1862. 



Of the sheets on the 1 : 50,000 scale (Ser. A, a) about 83 are published; 

 these are numbered in the order of publication, irrespective of their 

 relative positions. Each sheet is accompanied by a descriptive ' Beskrif- 

 ningar.' The prices, for map and description, are 2 kronor) for the full 

 sheets, 1 or 1| kroner for the coast sheets (1 kroner =ls. l\d ). 



Of the sheets on the scale of 1 : 200,000 (Ser. A, b) ten are published ; 

 each with ' Beskrifhingar,' price H kroner. 



All the maps give the distribution of the superficial deposits, but a few 

 are published with special reference to these and to agriculture. That 

 of the environs of Skottorp, scale 1 : 4,000, shows by signs the nature 

 and composition of the soil in great detail. There are also some special 

 maps referring to mining, &c. ; these extra maps are in Ser. B. 



A general map of Southern Sweden (south of lat. 59° 45'), on the 

 scale of 1 : 1,000,000, will probably be published with a description 

 during this year (1884). 



In addition to the explanations of the maps there are memoirs in 

 Ser. C (' Afhandlingar och uppsatsen ') in 8vo. or 4to., with or without 

 plates or atlas. Eighty of these are published, dating from 1863, at 

 various prices up to 8 kroner. They refer to palaeontology, stratigraphy, 

 petrology, economic and theoretical geology ; mo3t are in Swedish, but 

 a few are in French, German, or English. _ 



A map of the iron district of Central Sweden, though not an official 

 publication of the survey, should be mentioned here. This was prepared, 

 by A. E. Tornebohm, for the Board of Swedish Ironmasters (Jernkontoret). 

 It is in nine sheets (1879-82) ; each, with description, price 4 kroner. 

 Its title is ' Geologisk Ofversigtskarta ofver Mellersta Sveriges Bergslag ; 

 the scale is 1 : 250,000. 



Another similar publication, also by Tornebohm, is ' Geologisk atlas 

 ofver Dannemora Grufvor,' in 17 sheets, with description, 1878. 

 All the publications referred to are issued at Stockholm. 



1 This survey is described in La Carte geologiaue de la Suede et ses envois a 

 V Exposition Universelle de Pans en 1878, arecune description succinate des formations 

 geologiques de la Suede. 8vo. Stockholm, pp. 57, 1878. 



