96 president's address — section a. 



18. An Investigation into Stellar Photograpliy by Professor Pickering ; sea also Astron. 



Nachricliten, UO.i ; also Astronomical llegiscer, vol. i., p. 65, vrhich says the moon 

 photos, were Sin. in diameter. 



19. British Association Report, 18S9, pp. 130, 139, 140. 



20. Royal Astrunom cal Society Monthly Notices, vol. xix., p. .3.54. 



21. Roval Astronomical Society Monthly Notices, vol. xix., p. 3.56. 



22. Bri"tish A.-ssociati n Kepoit' 1S59, pp. 139, 140; Mso A.-tvon. Xachricten, 1105, 1129, and 



1158 ; also Monthly .Notices, vol. xix., pp. 138 and 139. 



23. Proceedings of Roval Societv, ISS*^, No. 247, p. 207. 



24. British As-ociation' Koport, 18.59. p. 149. 



25. British A^sociatiuu Report, 1861, p. 96; also Royal Astronomical Society Monthly 



Notices, p. 'JTM, v.-vh plate. 



26. Astronomical Register, vol. i., p. 118, 119. 



2". British Association Report, 1861, p. 95; also Royal .Astronomical Socie'y Monthly 

 X'lticcs vol. XIX.. p. 138. 



28. Roval .\stronomicrtl Society M(mthly Notices, vol. xix., p. 13S. 



29. Astronomical Register, vol. i., pp. 67 and 118. 



30. British A-^xiciatioa Report, 1859, p. 137. 



31. Phil. Trans., Is(i2. p. 333. 



32. Astronomical Re-ister, vol. i , p. 119. 



33. Pliil. Trans., lS(i2, p. 4(I5. 



34. Phil. Trans., 1861, p. 428. 



35. An I'lvestigation into Stell.ir Photography, by E. C. Pickering, p. 181 ; also Astrono- 



mical Register, vol. ii., p. ir.'9. A list of Kutherford's photographs is given in the 

 Smithsonian Miscellaneous Collections, Xo. 311, p. 89. 



36. Quarterly Journal ot Science, !8(i5. pii. <;.)1 and 652. 



37. Comptes'Rendus, 1869; also British A.ssiici .tiou Report, 1869, p. 25. 



38. Nature, vol, xxi., p. 23; alsj Astronomy anil .Istro-Physics, June, 1893. 



39. Nature, vol. in , p. 111. 



40. Nature, vol. xvi., p. 364. 



41. Nature, vol. xviii., p. 643. 



42. Nature, vol. xviii., p. 43. 



43. >atmv, vol. xxi., pp. 269 and 270. 



44. Nature, vol. xxxi., p. 84. 



45. Nature, vol. xxi.. p. 41(1. 



46. Nature, vol. xxiv., p. 308; also An Investigation into Stellar Parallax, by E. C. 



Pickering, p. 181. 



47. British .Association Report, 1881, p. 52it, with plate; also Nature vol., xxiv., p. 464. 



48. Natme, vol. xxiv., pp. 236 and 308. 



49. Nature, vol. xxv., p. 132. 



50. .Nature, ' ol. xxv., p. 489. 



51. Nature, vol. xxvi., p. 33. 



52. Nature, vol. xxvi., p. 179. 



53. Nature, vol. xxvii., p. 199. 



54. Nature, vol. xxvii., p. 199. 



55. Royal Astronomical Society Monthly Notices, xxviii., p. 88, and xxix., p. 4. 



56. Royal Astronomical Society Monthly Notices, vol. xxviii., p. 88. 



57. Nature, vol. xxviii., p. 606. 



58. Nature, vol. xxviii., p. 255. 



59. Astronomical Register, vol. xxiv., pp. 246-7 ; also Nature, vol. xxxiv., p. 35. 



60. Nature, vol. xxxv., p. 37 ; also Royal .Astronomical Society Notices, vol., xlvi., p. 107. 



61. Nature, vol. xxxi., p. 480. 



62. Nature, vol. xxxii., p. 70. 



63. Nature, vol. xxxv., p. 37. 



64. Nature, vol. xxxv., p. 16. 



65. In his Researches into Stellar Parallax. 



66. Nature, vol. xxxvii., p. 616 ; also Antronomy and Astro-Physics, Feb., 1893, p. 150. 



67. Astronomy and Astro-Physics, March, 1893, p. 271. 



68. Observatory, vol. xii., p. 165. 



69. Nature, vol. xi.., p. 17. 



70. Nature, vol. xl., p. 417 and 418. 



71. Royal Astronomical Society Monthly Notices, March, 1890, p. 296. 



72. Nature, vol. xli., p. 164. 



73. Natuie, vol. xliii., p. 452. 



74. Nature, vol. xliv., p. 438. 



75. Nature, vol. XLVii., p. 304. 



76. Aslronomv and .A>tro-Physics, May, 1892, p. 403. 



77. Astronomy and Astro-Physics, May, 1892, p. 408 ; also Aug., 6 3. vrith two plates, 



actual photographs. Nature, vol. xlvii., p. 498. 



78. Astronomy and Astro-Physics, October, i89J, p. 741. 



79. Astronomy and Astro Phyics, March, 1893, pp. 255 a d 2G0; also jlay, 1893, p. 463. 



80. Reseaiches in Slellvir Parallax, by Professor Pritchai d. 



81. Astronomy and Astro-Physics, June, lo93, p. 351. 



