.562 BUtPLEMENT FOR 1875. 



Butot, A. Note sur la decouverte de deux Spongiaires ayant pro* 

 voque la formation des gres fistuleux et des tubulations sableusea 

 de I'etage Bruxellien des Environs de Bruxelles. [Perforated 

 Sandstone due to Sponges in Brussels Eocene.] Ann. Soc. Mai, 

 BeUj. t. ix. Mem. pp. 55-68. See Geological Eecord for 1875> 

 p. 220. 



The name Dysidea tubulata is given to the sponge. 



Sadebeck, A. [Crystallography.] Sitz. Ges, nat. Freunde Berlin^ 



pp. 118-122. 

 Abstract of part of vol. 2 of Rose and Sadebeck's crystallography, in 

 the press. 



[New form of Copper from Nassau.] JSitz. Ges. naL Freunde 



Berlin, pp. 157-159. 



Schlonbach, [A. Die Erbohrung von Kalisalzen bei Davenstedt. 

 [Potash-salts at Davenstedt.] Min. Mitth. (Jahrb. k.-k. g^ol. 

 Reichs. Bd. xxv.) pp. 283-288. ' 



Scudder, S. H. On Fossil Insects from Cape Breton. Proc. Boston 



Soc. Nat. Hist. vol. xviii. pp. 113, 114. 

 Notices wings of cockroaches and the " abdomen of a larval dragon- 

 fly " (Haplojohlehium ?) in the carboniferous shale. 



Seue, C. de. Undersogelse af svartisen og tempera turf orhold i en- 

 kelte af de Nordlandske fjorde. [On the Svartis-glacier and the 

 temperature of some of the Northlandic fjords, Norway.] Nyt 

 Mag. Nat. Bd. xxi. pp. 229-270, plate. 



Argues against the glacier-theory of lakes and fjords. 



Scrope, G. P. Note on Mr. E. Mallet on the Prismatic Structure of 



Basalt. Geol. Mag. dec. ii. vol. ii. pp. 412-414:. 

 States that he propounded MaUet's theory 50 years ago, and corrects 

 an error relating to cup-joints in basaltic columns. 



Sopwith, T. Description of a series of elementary Geological ]\|!odel3 



illustrating the Nature of Stratification ; Valleys of Denudation ; 



the Effects produced by Faults or Dislocations ; Intersection of 



Mineral Veins, etc. With notes on the construction of large 



Geological Models. Pp. xvi, 76. 6 pls.J(wooScuts of models). 



8vo. London. 



Originally published in 1841 to describe a series of 12 geological 



models. The number is now reduced to 6. The book is in part a reprint, 



with addition and alteration, but further descriptions are given on 



pp. 56-76. W. T. 



Sigerson, G. On Changes in the Physical Geography of Ireland. 



Proc. B. Irish Acad. ser. 2, vol. ii. pp. 6-22. 

 Ireland has in past times suffered much from earthquakes. 



