Comets. 



252 



6600 



COMETS. 



6600 GENERAL, PHYSICAL 



APPEARANCE, FAMILIES. 



Discovery. 



Elements of orbit. 



Ephemerides. 



Observations of position. 



Physical appearance, tails, etc. 



Spectrum. 



The motion of short period comets. Pop. 

 Astr., Northfield, Miim., 12, 1904, (487). 



London, Royal Astroxomical Society, 

 Council of. The comets of 190.5. London, 

 Mon. Not. R. Astr. Soc, 66, 1906, (219- 

 221). 



Aitken, R[obert] G[rant]. The comets 

 of the year 1902. San Francisco, Cal., 

 Pub. Astr. Soc. Pac, 15, 1903, (24-25). 



Notes on the three comets 



now visible. San Francisco, Cal., Pub. 

 Astr. Soc. Pac, 15, 1903, (87-88). 



Unsuccessful search for periodic 



comets. San Francisco, Cal., Pub. Astr. 

 Soc. Pac, 16, 1904, (216). 



Archenhold, F. S. Ein ueuer Brief vou 

 Bes^el ub.r Konieteu. Weltall, Berlin, 4, 

 1904, (2SG-287). 



Baisch. Die Kometen. Natur u. 

 Kultm-, Munchen, 1, 1903, (104-110). 



Barnard, E[d\vard] E[merson]. Some 

 peculiarities of comets' tails and theii' pro- 

 bable explanation. Pop. Astr., Northfield, 

 Minn., 12, 1904, ([l]-5, with pi.) . 



Becker, E. Kometenbeobachtuna:en am 

 18-zoll. Refraktor der kaiserl. Univer- 

 .sitats- Stern warte in Strassbui-g. Astr. 

 Nachr., Kiel, 167, 190.3, (221-224). 



Boys, Charles Vernon. Die Ratsel des 

 Radiums und der Kometenschweife. Natw. 

 Rdsch., Braunschweig, 19, 1904, ^,221-224, 

 237-239). 



Callandreau, 0[ctave]. Comparaison 

 statistiiiuf (Ics petites plauetes et des cometes 

 a courte jicriode. Bui. astr., Paris, 20, 

 1903, (409-416) ; [trausl. hy Miss Isabella 

 "Watson]. Pop. Astr., Northtield, ]Miuu., 

 12, 1904, (117-123). 



Hepperger, Josef v[on]. Ueber Kome- 

 ten [Vortra^-]. A^'iell, Schr. Yer. Yerbr. 

 Natw. Keuutn.,45, 190.5. (181-212). 



Holetschek, Joh[ann]. L'ntersuchungen 

 uber die GriJsse und Helliffkeit der Kome- 

 ten und ihrer Schweife. II. Die Kometen 

 von 1762 bis 1799. Wien, Denkschr. Ak. 

 Wiss., 77, 1905, (503-609). 



King, Theo I. Observations of 



comets and minor planets, made with the 

 12-inch equatorial at the U.S. Naval 

 Observator)'. Astr. J. , Boston, Mass. , 23, 

 1903, (227). 



Knapp, M. Beobachtungen von Kome- 

 ten. Astr. Nachr., Kiel, 168, 1905, 

 (155-160). 



Kr eutz , H [einrich] . Zusammenstellung 

 der Kometen-Erscheinungen des Jahres 



1903. Leipzig, Yiertelj Schr. astr. Ges., 

 39, 1904, (42-50) ; . . . 1904. I.e., 40, 



1905, (81-88). 



Bericht iiber Kometen. 



Leipzig, YierteljSchr. astr. Ges., 39, 



1904, (226-232). 



Ljnn, "W. T. Remarkable comets, 13th 

 ed. revised. London, (Sampson Low), 



1906, (46). 16 cm. Qd. 



Periodical comets due in 



1906. Observatory, London, 29, 1906, 

 (64). 



Pechiile, C. F. Kometenbeobachtun- 

 gen. Astr. Nachr., Kiel, 167, 1905, 

 (257-264). 



Plassmann, [Joseph]. Durchsichtig- 

 keitsverhaltnisse der Kometen - Materie. 

 :\Iunster, Jahresber. ProvYer. Wiss., 32, 

 (1903/04), 1904, (172-173). 



Plummer, "\Y. E. President's inaugural 

 addi-ess. Comets. Liverpool, Rep. Astr. 

 Soc, 1905, (8-16). 



Schlesinger, Frank. Comet notes. 

 San Francisco, Cal., Pub. Astr. Soc. Pac, 

 15, 1903, (48-49). 



Schulz, J. F. H. Sonnen-Korona und 

 Kometen. Leipzig, YierteljSchr. astr. 

 Ges., 39, 1904, (201-209); Physik.Zs., 

 Leipzig, 6, 1905, (119-123). 



Scares, F[rederick] H. Observations 

 of comets. Columbia, Laws Obs. Univ. 

 Mo. Bui., No. 2, [1904], ([7]-ll). 

 31.5 cm. 



1618 II. 



Archenhold, F. S. Glockeuinschrift 

 Uber den Kometen vou 1618 und Nordlich- 

 ter in Beruau. Weltall, Berlin, 4, 1904, 



(32.5-326). 



