PIC] 



Pichler, Adolf. 2O. Beitrage zur Geognosie 

 Tyrols. Neues Jahrb. Mineral., 1875, pp. 926- 

 936; 1878, pp. 185-188; 1879, pp. 140-144; 1880 

 (Bd. 1), pp. 172-174; 1882 (Bd. 2), pp. 283-284. 



21. Beitrage zur Geognosie und Miner- 

 alogie Tyrols. Neues Jahrb. Mineral., 1876, pp. 

 919-923. 



22. Ueber die geologischen Verbal tnisse 



des St. Anna- oder Loibel-Thales bei Neumarktel 



in Krain. Karnten, Berg-Verein, Zeitschr., 13, 



1881, pp. 63-74. 

 Pichou, Alfred. *Nouvel appareil de navigation 



aerienne. Assoc. FranQ. Compt. Rend., 1872, 



pp. 176-177. 

 Pick, Georg Alexander. Ueber die Integration 



hyperelliptischer Differentiale durch Logarith- 



men. Wien, Akad. Sitzber., 85, 1882 (Abth. 2), 



pp. 643-662. 

 Pick, Gewg Alexander, &. Ungar, Max. Grund- 



ziige einer Theorie von einer Classe Abel'scher 



Integrale. [1880.] Wien, Akad. Sitzber., 82, 



1881 (Abth. 2), pp. 893-930. 

 Pick, Hermann. 9. Un nuovo tellurio. [1877.] 



Nuovo Cimento, 3, 1878, pp. 68-71. 

 Pickard-Camb ridge, (Rev.} Octavius. See 



Cambridge, (Rev.} Octamns Pickard. 

 Pickering, Edward Charles. To references in 



No. 14 (Vol. 8) add Annal. Phys. Chem., Erganz., 



6, 1874, pp. 621-622. 



17. Measurements of the polarization of 



the light reflected by the sky, and by one or 

 more plates of glass. Amer. Journ. Sci., 7, 

 1874, pp. 102-117; Phil. Mag., 47, 1874, pp. 

 127-143. 



18. Graphical integration. Amer. Acad. 

 Proc., 10, 1875, pp. 79-81. 



19. Mountain surveying. Amer. Acad. 

 Proc., 11, 1876, pp. 256-262. 



2O. Height and velocity of clouds. Amer. 



Acad. Proc., 11, 1876, pp. 263-264. 



21. Comparison of prismatic and diffrac- 

 tion spectra. Amer. Acad. Proc., 11, 1876, pp. 

 273-278. 



22. A nebula-photometer. Amer. Journ. 

 Sci., 11, 1876, pp. 482-483. 



23. Stellar magnitudes ; a request to 



astronomers. Astron. Soc. Month. Not., 39, 

 1879, pp. 391-393 ; Astr. Nachr., 95, 1879, col. 

 29-32; Nature, 20, 1879, pp. 14-15. 

 24. New planetary nebulae. Amer. Journ. 

 Sci., 20, 1880, pp. 303-305. 



25. Observations of the satellites of Mars, 

 made at the Harvard College Observatory. Astr. 

 Nachr., 97, 1880, col. 115-128, 145-148. 



26. Light of WEBB'S planetary nebula 

 (DM. + 41 4004). Nature, 21, 1880, pp. 346- 

 347. 



27. Two new planetary nebulae. Nature, 

 22, 1880, pp. 327-328. 



7 [PIC 



Pickering, Edward Charles. 28. Dimensions 

 of the fixed stars, with especial reference to 

 binaries and variables of the Algol type. Amer. 

 Acad. Proc., 16, 1881, pp. 1-37. 



29. Variable stars of short period. Amer. 



Acad. Proc., 16, 1881, pp. 257-284. 



3O. Large telescopes. Amer. Acad. Proc., 



16, 1881, pp. 364-369; Nature, 24, 1881, pp. 

 389-390. 



31. Observations of Comet in. 1869. 

 Astr. Nachr., 99, 1881, col. 95-96. 



32. [Measurements of the companion of 

 Sirius.] Astr. Nachr., 99, 1881, col. 219-222. 



33. [Objects remarkable for their colors 



or spectra, found at the Astronomical Observa- 

 tory of Harvard College.] Astr. Nachr., 99, 

 1881, col. 375-378 ; 101, 1882, col. 73-74. 



34. The wedge photometer. Amer. Acad. 



Proc., 17, 1882, pp. 231-233 ; Nature, 26, 1882, 

 pp. 259-260. 



35. The meridian photometer. Astron. Soc. 

 Month. Not., 42, 1882, pp. 365-367. 



36. Observations and elements of BAR- 

 NARD'S Comet 1881. Astr. Nachr., 101, 1882, 

 col. 57-60. 



37. Photometric observations of the satel- 

 lites of Mars, made at the Harvard College 

 Observatory 1881-82. Astr. Nachr., 102, 1882, 

 col. 193-196. 



38. Photometric measurements of SAW- 

 YER'S Variable (DM. + 13408) and its comparison 

 stars. Astr. Nachr., 103, 1882, col. 61-64. 



39. New planetary nebulae. Astr. Nachr., 



103, 1882, col. 95-96. 



4O. Photometric revision of the Durch- 



musterung. Leipzig, Astron. Gesell. Viertelj., 

 18, 1883, pp. 253-255. 



41. Observations of the transit of Venus, 



December 5 and 6, 1882, made at the Harvard 



College Observatory. Amer. Acad. Proc., 18, 



1883, pp. 15-40. 

 Pickering, Edward Charles, & Strange, D. P. 



Light absorbed by the atmosphere of the Sun. 



Amer. Acad. Proc., 10, 1875, pp. 428-432. 

 2. Tests of a magneto-electric ma- 

 chine. Amer. Acad. Proc., 10, 1875, pp. 432- 



445. 

 Pickering, Edward Charles, & Williams, Clias. 



H. Foci of lenses placed obliquely. Amer. 



Acad. Proc., 10, 1875, pp. 300-307. 

 Pickering, Edward Charles, Searle, Arthur, & 



Wendell, 0. C. Photometric measurements of 



the variable stars /3 Persei and DM. 8125, made 



at the Harvard College Observatory. Amer. 



Acad. Proc., 16, 1881, pp. 370-397. 

 Pickering, Spencer Percival Umfreville. The 



action of sulphuric acid on copper. Chem. Soc. 



Journ., 33, 1878, pp. 112-139; Moniteur Scien- 



tifique, 21, 1879, pp. 588-608. 



R. 8. XI. 



