This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1852 Excerpt: ...CXII. p. 437; CXV. p. 2+7--Feruss. Bull. 1823, I. p. 65; 1827, X. p. 424. 4. A Treatise on the Medicinal Leech; including a description of its anatomical structure. Lond. 1816, 8. 5. Further Observations on the Medicinal Leech, etc. Lond. 1825, 8. 6. Observations on Prof. Catena's Monograph on the genus Hirudo--Journ. Roy. Inst. XXII. p. 38 Feruss. Bull. 1827, XII. p. 167. Johnson (S. L.). 1. Ascent of Mount Etna, Febr. 1832.--Sill. Am. Journ. XXVI. 1, p. 1. Johnson (Walter R.). 1. Notice of a Report of a Geological, Mineralogical and Topographical Examination of the Coal Field of Carbon Creek, etc.--Sill. Am. Journ. XXXIX. p. 137. 2. Report of an Examination of the Bear Valley Coal District in Dauphin County, Pennsylvania. Philad. 1841, 8. 3. Examination and Analysis of Coal found in the Province of Arauco, Coast of Chili, thirty miles south of Bio Bio River.--Proc. Ac. N. Sc. Philad. 1841, p. 21. 4. On the relation between the Coal of South Wales and that of some Pennsylvania Anthracites.--Proc. Ac. N. Sc. Philad. 1841, p. 40. 5. Some Remarks on the recent application of Anthracite to the Smelting of the Magnetic Iron Ores of New Jersey.--Proc. Ac.-N. Sc. Philad. 1841, p. 42. 6. Some Remarks on the Samples of Anthracite from Rhode Island--Proc. Ac. N. Sc. Philad. 1841, p. 118. 7. Some Statements respecting the Fossils presented by him at the last meeting of the Society.--Proc. Bost. Soc. N. H. 1841, p. 43. 8. Some Observations on the Spontaneous Combustion of Bituminous Coal.--Proc. Ac. N. Sc. Philad. 1842, p. 140. Johnston (Alexander Keith). 1. The Physical Atlas of Natural Phenomena. fol. Edinb.--4. Edinb. 1849. Johnston (George). 1. On the genus Caligus of Leach--Edinb. Phil. Journ. X. p. 292.--Feruss. Bull. 1828, XIII. p. 160.--Isis, 18...