250 HEN 
Hennessy (Henry). Terrestrial Climate as influenced by the Distribution 
of Land and Water at different geological Epochs. (Tract.) 
8vo. Dublin, 1859. 
——. Note on the Laws which regulate the Distribution of Isothermal 
Lines. (Tract.) 8vo. Dublin, 1859. 
——. The Relations of Science to Modern Civilization. (Tract.) 
8vo. Leeds, 1862. 
——. On the Floatation of Sand by the rising Tide in a tidal Estuary. 
(Tract.) 8vo. Dublin, 1871. 
Henrich (F.). Vortrige iiber Geologie. Heft 1-3. 
8vo. Wiesbaden, 1877-78. 
Henry (James). A‘neidea, or critical, exegetical, and «sthetical remarks 
on the Aineis. Vol. I. and portion of vol. I. 
8vo. London, Edinburgh, and Dublin, 1873-78. 
Henry (Joseph). Sketch of his life and contributions to science. (Tract.) 
8vo. Washington, 1879. 
——. Meteorology in its connection with Agriculture. (Tract.) 
8vo. Washington, 1858. 
——. Thoughts on Education. (Tract.) 8yo. 
Henry (William). Analysis of several Varieties of British and foreign 
Salt. (Tract.) Ato. London, 1810. 
——. The Elements of Experimental Chemistry. 6th edition. 2 vols. 
8yo. London, 1810. 
——. An Estimate of the Philosophical Character of Dr. Priestley. 
(Tract.) 8vo. New York, 1832. 
Henslow (George). Genesis and Geology Svo. London, 1871. 
Henslow (John Stevens). Biographical asi See Jenyns (Leonard). 
——. Geological Description of Anglesea. (Tract.) 
Ato. Cambridge, 1822. 
——. A syllabus of a course of lectures on mineralogy. 
8vo. Cambridge, pas. 
——. On the examination of a hybrid Digitalis. (Tract.) 
Ato. Cambridge, 1831. 
——. Catalogue of his valuable and extensive collections of natural his- 
tory and miscellaneous articles. (Tract.) 8vo.. London, 1861. 
Hentz (Nicholas Marcellus). Spiders of the United States. (Occasional 
papers of the Boston Society of Natural History, No. I.) 
8vo. Boston, 1875. 
Henwood (George). Four Lectures on Geology and Mining. 
8vo. London, 1855. 
Henwood (William Jory). A Lecture on the Phenomena of Metalliferous 
Veins. Newspaper extract. Truro, 1836. 
——. Notice of the Sulphate of Barytes found at Wheal Mary-Ann, in 
Menheniot. (‘Tract.) 8vo. Truro, 1851. 
——. Notice of the Rock-basins at Deo (Devi) Dhoora, near Almorah 
in Upper India. (Tract.) 8vo. Truro, 1856. 
——. Notes on Subterranean Temperature observed in Chili. (Tract.) 
8vo. Truro, 1857. 
——., Note on Changes produced by the Deepening and Extension of 
Mines in the Temperatures at their previous Bottoms. (Tract.) 
8vo. Truro, 1859. 


