276 



Brown coal. 



i Brunkul.) 



The brown cool occurring in Jutland is described pp. 21 90. On i>p. 



.:; numerous new piaces are mentioned where tignitc was Found in Jut- 

 land and the mode of its deposition statcd. The conditions ol deposil and 

 distribution ol the lignite al Sandfeldgaard have been \«i> thoroughlj in- 

 vestigated | pp. 29 1 1 i. 



(in pp. 19 50 :i description is given of Ihe line Tertiarj section al Salten, 

 depicted on ligs. 8 and 9. 



The section contains the following: 

 ca. 1. ni. moraine gravel, 



- 17. - stratified, stoneless, fluvioglacial sand, 



- 12. - black mica-claj with a lew lighl sand layers, 



0. - lignite, 



1. - coarse quartz sand. 



On pp. .") i .")."> a summarj is given of the higher piants found in the 

 lignite and the lignite gytjes, partlj leaves, partly carpolites and partly 

 pollen (the last determined by Prof. (i. Lagerheim, Stockholm). On pp. 55— 

 (in a few of these species are described in more detail. 



The following new species are mentioned: Carpolithes Dalgasii is a 

 rounded, curved carpolite, beset with numerous small tubercles <>n the convex 

 side and provided at the one end with a hole (PI. 111, fig. 10). 



Carp. Johnstrupii ; under this name I bring together a group of small 

 black, carbonized, bivalved spherical or elongated-pointed carpolites with 

 thick testa, all ol' which have in common, that their inner cavity is pear- 

 shaped, lighter-coloured and prolonged upwards into a quite t hin canal, which 

 seems lo reach right through the testa ofthe carpolite; they are very common 

 in the lignites (PL III, li-s. 11 13). 



Carp. Ngssoides (PI. III, ligs. 14—16): a Hat, broadly or oblong egg-shaped 

 or oblong lanceolate carpolite, with (.""> or) (i Hat. usually indistinct, curved 

 ribs on eacb side; il varies in size and in the relation between length and 

 breadth (13. 7. mm. — 22 x 12 mm.). 



Carp. A (PI. III, figs. 17 1<S): a Hat, slightly irregularly oblong carpolite 

 with 3 or I indistinct longitudinal ribs; (i. min. long, 1 mm. broad, 1 mm. thick. 



Carp. B (PL III, figs. 19 (and l>o > > : :) flat, thin-tested, pointedly egg- 

 shaped carpolite represented on fig. 20 mav also perhaps be referred to 

 this species. 



Hydrocharis tertiaria: shining, coal-black seed, 2 mm. long and ca. La mm. 

 broad, egg-shaped, with a hole (germination hole) at Ihe pointed end. A 

 microscopic examination of Ihe testa showed such an obvious agreement 

 with the seed ol' Hydrocharis morsus raiue, thai there can scarcelv be any 

 doubt that they must be referred to this genus. 



On pp. (30—61) the dialoms found by E. ØSTRUP in the lignite, lignite 

 gytjes and mica-clay are described; they are all common modern forms and 

 — curiously enough — all freshwater forms. On pp. (>4 — (37 a summary is 

 given of the species. 



