316 Scientific Intelligence. 



Orthoclase feldspar has been exposed to different solutions by 

 A. Beyer, aided by Birner, Ulbricht and Heinrich (Arch. Pinna. 

 II, el, 193). A kilogram finely pulverized was put each time in 

 two liters and a half of water or certain solutions, and kept so for 

 about five months — out of contact with the air. The weight in 

 grams dissolved in the 2A liters of water for the different liquids 



Equiv. K s Na. 2 CaO MgO Fe,:£l SiO s 



Sulphate of ammonium 02 0-161 0-094 0-122 0-035 0-066 



The results are of much interest, showing that common salt and 

 sulphate of ammonium, products that are usually in the soil, in- 

 crease much the dissolving power of water; and still mere do 

 lime and magnesia— these bases separating the alkalies. Lemberg 

 has shown that by the action of sulphate of magnesia on the 

 zeolites, oper fi'i'-r in closed tubes with heat, they were changed 

 to hydrous silicates of magnesia ; apophyllite being thus changed, 

 the process all but a few hundredths of its lime. Such 

 facts are of great interest in connection with the subject of the 

 origin of serpentine pseudomorphs. 



7. A fossil Saurian Vertebra from the Arctic Regions.— Prof. 

 A. Leith Adams has named the Saurian, a vertebra of which was 

 from Rendezvous Point, Byam Martin Channel, by 

 Admiral Sherard Osborn, Arctosaurus Osborni. It is "in all 

 probability one of the middle cervieals of a Saurian with biconcave 

 vertebra'," between ten and twelve feet 



with Lacertilia than Cmeodilia/' Sir F.dvard Beleher, Sir L. Mc- 

 Osborn brought many fossils from the group 

 of islands lying between \.,rth Cornwall and North Devon. 

 Among others were remains of Ichthvo-aurus. determined by 

 Prof. Owen, and said to be from Lias beds; and these are the only 

 Arctic Reptilian remains hitherto described. 



" Fossil Vertebrates from the Fort Union beds of Montana.—^ 

 :*. E. D. Cope has described the 

 Proceedings of the Philadelphia Acadei 

 1876, p. 248: Aublyxodon literoH*, ' L>tL< r > ht<-r<m*it><*. <>• 

 eacpianatw, 1. r >!.<',, I > , t„„« ,■„,•„ >,.<f (a herbi r«»us Dm-'- 

 saur), D. ITaydenionus, '/>. 1,;,;,ri,,.ttn#, l>. r .:., ,,n*, /'<'■ ■'■ ""? 

 pentagonw (allied to ff.<dr<,x,i„rns). h. r ,r<>n'/>>/>i?»s, D- cai ' 

 ui'irh.is, Monorlon'iiis rranKu.-i (near Jltnlrnvnirii*). Paronychodon 

 ■■ ■ /.<),all ba<ed „, ^.eeimeie- <»t teeth; al*'» 



• '*"'/"•'' <■'»<*. ' ■ ■ '■■ I'nluth.,,-! '• 



it ' ' • s ' •■/'.'. ':d„* ,•„->•,;■„.,. r. hieroglyph**, 

 Myledaphus bipartitus. 



