406 SUPPLEMENT FOE 1874. 



Hagen, H. On Amber in North America. Proe. Boston Soe. Nat. 



Hist. vol. xvi. pp. 296-302. 

 Gives a section in Maryland. 



Harpe, Phil, de la. Note sur les Nummulites de Crimee. [Crimean 

 Nummulites.] Bull. Soc. Vcmd. Sci. Nat. ser. 2, vol. xiii. pp. 267- 

 272. 



Hubert, Prof. E. Note sur la couche a dents de squales de'couverte 

 a Bruxelles par M. Eutot. Ann. Soc. Oeol. Bekj. t. i. Bulletin, 

 pp. Ixxiii-lxxv. 



List of fossils (Eocene) and section. 



Heer, Dr. Oswald. Om nagra fossila vaxter fran on Sachalin. 

 [Miocene Plants from Saghalien.] (Efv. K. Vet. Akad. Fork. Arg. 

 31, no. 10, pp. 29-31. 



Helland, A. Om gehalten af Slam i Braeelve. [Amount of Mud in 

 Glacial Rivers.] Geol. Foren. Stockholm Forh. Bd. ii. no. 21. 



The Justedal glacier (Norway), 70 kilometres long and averaging 12 

 broad, is the subject of inquiry. The main conclusions are as follows : — • 

 1. On a July day the 9 outlets carry to the lakes and fjord 2 million 

 kilogrammes of suspended materials, with 770,000 kilogrammes in 

 solution. 2. Annual quantity, estimated close to the glacier where the 

 contents are very variable, 180 million kilogrammes in suspension, 13 

 million in solution. 3. Annual quantity, estimated where rivers 

 debouch on larger sheets of water, and where the contents are less 

 variable, 170 million kilogrammes in suspensiou, 50 million in solu- 

 tion. At sp. gr. 2-Q, 180 million kilogrammes of mud represent 69,000 

 cubic metres of stone as removed yearly. H. M. 



Helmhacker, Rud. Geognostische Beschreibung eines Theiles der 

 Gegend zwischen Benesov und der Sazava. [Geological Descrip- 

 tion of Part of the District between Benesov and the Sazava.J 

 Arh. geol. Abth. Land. Bohm. 1 Theil, ii. Bd. Ab. 2, Theil 1, 

 pp. 411-446, with 1 map and 1 plate of sections. 



Hennessy, Henry. Note on additional Instances of the Tidal Floata- 

 tion of Sand. Proc. B. Irish Acad. ser. ii. vol. i. no. 9, p. 554. 



Hertzer, H. W. Die QueUen-Temperatur der Hartzgegend in der 

 Richtung und Hohe zwischen Halberstadt und dem Brockengipfel. 

 [Temperature of Springs in the Region of the Hartz, between 

 Halberstadt and the Brocken.] Reprint from the Programme des 

 Gymnasiums zu Wernigerode. Pp. 88. 



Hunt, Dr. T. S. [On the crystalline rocks of the Blue Ridge.] Proc. 

 Boston Soc. Nat. Hist. vol. xvi. pp. 115, 116. 



. .[Stratification of Rock-masses.] Ibid. pp. 237, 238. 



. The Deposition of Clays. Ibid. pp. 302-304. 



