372 NATURAL SCIENCE [June 



of phosphoric acid revealed by the bulk-analysis of the rocks. 

 As much as 2 per cent, is present in the region occupied by the 

 norites and monzonites, and here the cattle have well-developed 

 bones ; the '3 per cent, of P2O5 where the hornblende-granite series 

 prevails is sufficient to check disease in some measure ; but the bad 

 district, from the farming point of view, coincides with that of the 

 labradorite-rocks, which contain only '002 per cent. It is almost 

 quaint to find the appearance of apatite in microscopic sections em- 

 ployed as an argument for the choice of pasture-lands. 



In a third paper (' Et orienterende niveau i bergensskifrene "), 

 Prof. Kolderup describes a new fossil-locality at Aasen in 

 Samnanger, which leads him to correlate the limestones of tliat 

 locality, and their associated rocks, with the well-known altered 

 Silurian rooks of Bergen. 



Each paper is conveniently accompanied by an abstract in 

 Cxerman. 



Kecent Work on the Fokaminifera 



Before enumerating the more recent papers on this group of 

 animals it will be well to call attention to three papers which are 

 likely to be overlooked, from the fact that they are all Inaugural 

 Dissertations. The first, bv Friedrich Sellheim, is entitled " Beitrag 

 zur Foraminiferen-kenntnis der frankischen Juraformation," and 

 was published at Erlangen in 1893. This tract of 34 pages is 

 accompanied by a plate in wliich fig. 17, Frondicidaria paralMa, is 

 a new form. Many others are described as new species, but they 

 do not seem to us to be worthy of such a position. The second 

 paper " Geognostische Beschreibung des Eathsberger Hohenzuges " 

 (Erlangen, 1896) is by Alfred Bettinghaus, and the Foraminifera 

 occur as a list from the Amaltheenmergel (Lias S). Karl Mitter- 

 raaier, the author of the third paper, which is also published at 

 Erlangen, 1896, writes on " Der Mikrofauna der oberen Kreide- 

 schichten von Transkaukasien." This paper calls for no special 

 notice, except that his Nodosaria suhconstricta and his GlaiuhUina 

 jpanicea are the same form, which seems to differ from anything we 

 have seen before from the Chalk. 



It is refreshing to turn to the concluding paper on the " Fora- 

 minifera of the Gault," by Frederick Chapman, which brings to an end 

 a valuable and perfect monograph on the subject. We hardly know 

 whether to congratulate the author or the Eoyal Microscopical Society 

 the most, for the Society has most liberally seen the author through 

 with a piece of work which will be a classic. The present paper deals 

 with the Rotalines, and the odds and ends which have come to light 

 during the progress of the work. There is a brief note on the Gault 

 of Folkestone and its continental equivalents, followed by a biblio- 



