ADDITIONS TO THE LIBRARY. 1 39 



Haiisler, Dr. R. Notes on the I'rochammince of the Lower Malm 

 of the Canton Aargan, Switzerland. 8vo. London, 1882. 



. Additional Notes on the Trochammince of the Lower Malm 



of the Canton Aargau, including Webbina and Hormosina. 8vo. 

 London, 1882. 



Hawes, G. W. On Liquid Carbon Dioxide in Smoky Quartz. 8vo. 

 New Haven, 1881. 



Heaphy, M. Electric Lighting. A Report to the Phoenix Fire 

 Office upon the various systems of electric lighting and the 

 dangers attending them. 4to. London, 1882. 



Hebert, E. Le terrain cretace des Pyrenees. 8vo. Paris, 1881. 



. Le terrain peneen de la Rhune et l'etage corallien des 



Pyrenees. 8vo. Paris, 1881. 



. Sur le groupe nummulitique du Midi de la France. 8vo. 



Paris, ] 882. 



. Sur le groupement des couches les plus anciennes de la serie 



stratigraphique a l'occasion du projet de carte geologique inter- 

 nationale de T Europe. 8vo. Paris, 1883. 



Heer, 0. Piora fossilis arctica. Die fossile Flora der Polarlander. 

 Band vi. Abth. 2. 4to. Zurich, 1882. Purchased. 



Helmersen, G. von. Geologische und physic o-geographische Beob- 

 achtungen im Olonezer Bergrevier. 8vo. St. Petersburg, 1882. 

 Atlas, 4to. 



. Studien iiber die Wanderblocke und die Diluvialgebilde 



Russlands. Lief. ii. 4to. St. Petersburg, 1882. 



Henwood, 'W. J. Report on the Metalliferous Deposits of Kumaon 

 • aud Gurhwal in North-western India. 8vo. Calcutta, 1855. 

 Purchased. 



Hicks, II. On the Discovery of some Ptemains of Plants at the Base 

 of the Denbighshire Grits, near Corwen, North "Wales, with an 

 Appendix by R. Etheridge. 8vo. London, 1881. 



Additional JSTotes on the Land Plants from the Pen-y-glog 



Slate Quarry near Corwen, North Wales. 8vo. London, 1882. 

 — . On some Recent Researches among Lower Palaeozoic Rocks in 



the British Isles. 8vo. London, 1882. 



Hill, E. On the Effect of Fluctuations in a Variable, upon the mean 

 Values of Functions of the Variable ; with an application to the 

 theory of Glacial Epochs. 8vo. Cambridge, 1882. 



Hincle, G. J. Notes on Fossil Calcispongiae , with Descriptions of 

 New Species. 8vo. London, 1882. 



. On Annelid Remains from the Silurian Strata of the Isle of 



Gotland. 8vo. Stockholm, 1882. 



m 2 



