Kapitel in diesem Buch

1. Frontmatter I
2. ADVERTISEMENT IV
3. LIST OF THE OFFICERS V
4. LIST OF THE MEMBERS VI
5. Conditions of the Magellanic Premium VIII
6. Conditions of the Surplus or Extra-Magellanic Premium IX
7. Regulations respecting the Surplus Magellanic Premium X
8. Report of the Historical and Literary Committee to the American Philosophical Society.—Read, 9th Jan. 1818 XI
9. PHILADELPHIA OBSERVATORY XVI
10. OBITUARY NOTICE XVIII
11. CONTENTS XXI
12. No. I. On the. Geology of the United States of North America, with remarks on the probable effects that may be produced by the decomposition of the different classes of Rocks, on the nature and fertility of Soils: applied to the different States of the Union agreeably to the accompanying geological map 1
13. No. II. Astronomical observations made at Lancaster, Pennsylvania, communicated 93
14. No. III. Abstracts of Calculations to ascertain the longitude of the Capitol in the City of Washington, from Greenwich Observatory, England 103
15. No. IV. Investigation of the Figure of the Earth, and of the Gravity in different latitudes 119
16. No. V. Memoir on Leaden Cartridges 137
17. No. VI. Tables of the Altitudes of Mountains in the states of JVew Fork, JYew Hampshire, and Vermont, calculated from barometrical and thermometrical observations 147
18. No. VII. On the Population and Tumuli of the Aborigines of North America. In a letter from H. H. Brackenridge to Thomas Jefferson 151
19. No. VIII. An Account of some experiments made on Crude Platinum, and a new process for separating Palladium and Rhodium from that metal 161
20. No. IX. An Attempt to ascertain the fusing temperature of metals 167
21. No. X. An Inquiry into the Causes why the metals in a solid state appears to be specifically lighter than they are in a state of fusion 170
22. No. XI. Observations and Conjectures on the formation and nature of the soil of Kentucky 174
23. No. XII. An easy solution of a useful problem in Arithmetic 181
24. No. XIII. On the Geological formation of the Natural Bridge of Virginia 187
25. No. XIV. Analysis of the Blue Iron Earth of New Jersey 193
26. No. XV. On Vanishing fractions 200
27. No. XVI. An Account of Pyrometrical Experiments made at Newark, New Jersey, in April, 1817 210
28. No. XVII. English Phonology; or an Essay towards an analysis and description of the component sounds of the English language 228
29. No. XVIII. On Fossil Reliqnia of unknown Vegetables in the Coal strata 265
30. No. XIX. An Account of a large Wen, successfully extirpated 298
31. No. XX. Page. An Account of an improvement made on the differential Thermometer of Mr, Leslie 301
32. No. XXI. Description of a rolling draw-gate, as applied to water-mills. Invented and communicated 307
33. No. XXII. Description of an Indian Fort in the neighbourhood of Lexington, Kentucky 310
34. No. XXIII. Description of an improved Piston for Steam Engines, without hemp packing 313
35. No. XXIV. On Bleaching 317
36. No. XXV. Description and use of a simple Appendage to the reflecting Sector, which is rendered capable of measuring all possible altitudes on land, by Reflection from an artificial Horizon 325
37. No. XXVI. Description and use of a very simple Instrument for setting up Swn-dials, and for many other useful purposes 333
38. No. XXVII. Observations made at an early period on the Climate of the country about the River Delaware, collected from the records of the Swedish colony 340
39. No. XXVIII. Research concerning the mean diameter of the Earth 353
40. No. XXIX. An improvement in the common Ship-Pump 367
41. No. XXX. Observations on those Processes of the Ethmoid Bone, which originally form the Sphenoidal Sinuses 371
42. No. XXXI. An Account of Two Heads found in the Morass, called the Big Bone Lick, and presented to the Society, by Mr. Jefferson 375
43. No. XXXII. An Account of a Case of Disease, in -which one side of the Thorax was at rest, while the other performed the motion of Respiration in the usual way 381
44. No. XXXIII. Descriptions of several species of Chondropterigious Fishes, of North, America, with their varieties 383
45. No. XXXIV. Investigation of a Theorem, proposed by Dr. Rittenhouse, respecting the Summation of the several Powers of the Sines; with its Application to the Problem of a Pendulum vibrating in circular Arcs 395
46. No. XXXV. A Monograph of North American insects, of the genus Cicindela 401
47. No. XXXVI. Description and Rationale of the operation of a Simple Apparatus, which may serve as a Substitute for the Ship- Pump, and which will require no manual labour whatever ; being a Supplement to the paper, No. XXIX. on that subject 425
48. No. XXXVII. Abstracts and Results from eight Annual Statements (1809 io 1816), published by the Bourd of Health, of the Deaths, with the diseases, ages, fyc. in the City and Liberties of Philadelphia 428
49. Donations for the Library 433
50. Maps, Plans, and Engravings 449
51. Donations for the Cabinet 450
52. ERRATA 453