35. Aurora of September 3, 1839. S. Alewander......seseesss i, 132 
36. Discovery of Two Kinds of Dynamic Induction by a Galvanic 
Current. Foseph Henry....secoee SO boob eobrks SOODOL i, 135 
37. Magnetic Dip. £. Loomis...cecessesee- Suede vCsesesive ce i, 144, 308 
38. On the Magnetic Dip. A. D. Bache. ..ccscseseeeececeeeee i, 146, 151 
39. Magnetic Observations. A. D. Bache........+seeeeeeeee oe 01, B85; 204 
40. Galvanic Influence Through Wire Coil. odert Hare...... i, 199 
4¥. Galvanic Deflagration. Robert Hare..ccccvececsccevesecs 1,, 253 
42. Electricity from Steam, 2. MZ. Patterson. .ceveeseeeeeeess i, 320 
43. Electricity from Steam. G. Emerson ..ccccsceeseveeeeeees figees 
44. Magnetic Observations. ohn Locke.......1.+eeeeee Scie li, 35 
45. Magnetic Observations, A. D. BORE antes sene ek e's li, 69, 83, IOI, 150 
46. Magnetic Observations. F. D. Graham ..resssevecesesees li, 84 
47. Magnetic Distribution. oseph Henry. ..cccseeseeescccees li, 111 
48. Magnetic Observations. LZ. Loomts..cccoccssceessecees ii, 114, 176, 185 
49. Electrical Induction. FYoseph Henry ...cccceeesssceccceens ii, 122, 229 
50. Magnetic Meridan. MOT BACKERS) aia tineisia» ae a Bikes Ns Keg7 
51. Non-electricity of Nascent Steam. Robert Hare..........+. ii, 160 
52. Induction Inclinometer. 4. D. Bache .......... sratetevere sieie il, 237 
53. Inclinometer. HY. Lloyd......... Saseee aera nis are niente il, 237 
54. Magnetic Observations. 4. D. Bache.......+.0+. Siaeenves lii, 90, 175 
55- On the Magnetic Dip. 4. D. Bache..cccccessseeseesesees V5 nr0 
56. Terrestrial Magnetism. ohn Locke.......ee.eeseereecees iv, 63 
57- Magnetic Observations. ohm Locke..........-seee ee eeeee iv, 109 
58. Lightning Protectors. Yoseph Henry.ceccerseeesees anions iv, 179 
59. Observations on the Magnetic Dip. F D. Graham........+ lv, 205 
60. Experiments on Electricity. oseph Henry...cccccaceacess iv, 209 
Gis Oi Wib RINE WGA FON Cassadas cae ae HOON beRC OCHO Or iv, 218 
Goaeholarizanonol Waters (OSC LLE7F) x eiela'e e\vicisieis.0 cc) ele.ae sec iv, 229 
63. Effect of Lightning on Telegraph Wires, S. D. /ugham.... iv, 259. 
64. Effects of Lightning on Telegraph Wires. Foseph Henry.... lv, 260 
65. A New Telegraphic Clock. ohm Locke ...ccceeeeseesceee Vv; 51, 206 
66. Telegraphic Operations of the United States Coast Survey. S. 
CEVA EOI AA PAE we S aiare, of sede oh Sie as Shahad wale sere ewieiats Vara: 
67. Telegraphs for Railroad Uses. Zantedescht........ alere shecbre vi, 266 
68. Duplex Transmission. Zantedeschi.,..... ec ccececcccscccs vi, 267 
69. Measure of Electrical Nervous Muscular Sensibility. Zazz¢e- 
ESCHER eaters Gon S0oopolUbS CoNeueRodoe nlaletehovavelsheler <i vi, 291 
70. Remarkable Electrical Phenomena. ohn C. Cresson........ vil, 385 
71. Heights of Auroras. B. V. Marsh........ Sta divs daransreels x24. 
72, Diamagnetism. John C. Cresson....... ee TaD Te eysichetavecare x, 199 
va Effects of Lightning in Deep Mines. Dock... .sancseescer x, 288 
74. Recent Auroras. ohn C. Cresson..... Balai ent aieiaie scncela siete xi, 522 
75. Spectroscopic Examination of the Aurora, April 10, 1872, /. 
Te a Tae oat ed oe Scapa xii, 579 
76. Electric Spectra of Metals. 4. £. Outerbridge...cccvesscees xiv, 161 
157 
