75 



Guerrieri, Eup;enio. Coivieta More- 

 house (lOOSc). I?iv. fis. mat. so. nal. 

 Pavia JUll 23(1^25-230). [GOOO]. 21 11(1 



11 uiiovo pianeta " Iii- 



teramnia" [1911 KU]. Riv. fis. mat. 

 sc. nat. Pavia 1911 23 (523-529). 

 [5910]. 21117 



Cometa 1911 c (Brooks). 



Astr. Nachr. Kiel. 190 1912(247-248). 

 [GGOO]. 21118 



Cometa 1911 b (Kiess). 



Astr. Nachr. Kiel 191 1912 (183-184). 

 [OGOO]. 21119 



Guillaume, J[oseph]. ()1)servations du 

 Soleil i'aite a I'observatoire de Lj'on 

 pendant le troisieme [et le qnatricme] 

 trimestre de 1911. Paris C. R. Acad, 

 sci. 154 1912 (259-260 412-413). [4070]. 



21120 



Guthnick, r[aul]. Wahrscheinliclikeit 

 eines selir holieu Prozentsatzes von 

 Veranderlichen mit merkliehen Licht- 

 wechsel-Amplituden unter den Helium- 

 Bternen. Astr. Nachr. Kiel 191 1912 

 (169-182). [7600 1850]. 21121 



Bestimniung der Rotations- 



dauer der vier alteren Juj^itertrabanten 

 aus Beobachtungen ibrer Helligkeits- 

 schwankungeu.Die pliysische Beschaffen- 

 heit ihrer Oberfliichen. 2 Mitt. 

 (Sternwarte des Herrn von Biilow zu 

 Bothkamp.) Kiel (Druck v. C. Schaidt) 

 1905 (11 + 49 mit 1 Taf.). 29 cm. 

 [6550]. 21122 



V. Ebell,M. 



Haas, Arthur Erich. 1st die Welt in 

 Raum und Zeit unendich ? Arch. Philos. 

 Berlin Abt. 2 18 1912 (167-184). 

 [0000]. 21123 



Hagen, Giovanni. La " stella mago- 

 rum." Riv. astr. e sc. affini Torino' 5 

 1911 (74-77). [0010 7600]. 21124 



Hahn, Ed. Zur Rolle Babyloniens 

 fiir Kuitur und Astronomie. D. Litera- 

 turztg Leipzig 32 1911 (2629-2633). 

 [9060]. 21125 



Hale, George E[llery]. Polarization 

 phenomena of coelostat telescopes. San 

 Erancisco Cal. Pub. Astr. Soc. Pac. 

 24 1912 (73-75). [2050]. 21126 



The 150-foot tower tele- 

 scope of the Mount Wilson Solar Observa- 

 tory. San Francisco Cal. Pub. Astr. 

 Soc. Pac. 24 1912 (223-226 with pL). 

 [2220 2050]. 21127 



Hale, Cleorge E[llery]. A sun-spot 

 liypothesis. San l'"rancisco Cal. Pub. 

 Astr. Soc. Pac. 24 1912 (22G-227). 

 [1070 4GI0J. 21128 



The study of stellar evolu- 

 tion. An account of some recent 

 methods of astrophysical research. 

 (The Decennial Publications, Second 

 Series, Volume 10.) Cliicago (University 

 of Chicago Press) 1908 (Xl +-252 withff. 

 pis.). 23 cm. [1810]. 21129 



Hall, Asaj h, jun. Elements of (636) 

 [1907 XP]. Washington D.C. Pub. 

 IT. S. Naval v^bs. (Ser. 2) 6 1911 (B 114- 

 B116). [.5900]. 21130 



Hall, Maxwell. The solar cycle and 

 the Jamaica rainfall and eartliquake 

 cycles. London Rep. Brit. Ass. 1911 

 1912(339-340). [4110]. 21131 



The zodiacal light. Sy- 



mons' Meteor. Mag. London 47 1912 

 (24-25). [G720]. 21132 



Hammer, E[rnst]. Bewegung der 

 Drehachse der Erde im Jahr 1910. Zs. 

 Vermessgsw. Stuttgart 41 1912 (249- 

 253). [5100]. 21133 



Hammond, J. C. Introduction 

 [Equatorial observations, 1893-1907]. 

 Washington D.C. Pub. U. S. Naval Obs. 

 (Ser. 2) 6 1911 (A iii-A Ixvii with pis. 

 tables). [2010]. 21134 



Orbits of Pliobos and 



Deimos from observations made by H. L. 

 Rice in 1907. Washington D.C. Pub. 

 U. S. Naval Obs. (Ser. 2) 6 1911 (B 19- 

 B 28). [1500 6530]. 21135 



Elements of (532) Hercu- 



lina. Washington D.C. Pub. U. S. Naval 

 Obs. (Ser. 2) 6 1911 (B 79-B 89). 

 [1310 5900]. 21136 



Elements of (611) [1906 



VL]. Washington D.C. Pub. U. S. Naval 

 Obs. (Ser. 2) 6 1911 (B 104-B 110). 

 [1310 5900]. 21137 



. Elements of (G22) [1906 



WP]. Washington D.C. Pub. U. S. 

 Naval Obs. (Ser. 2) 6 1911 (B lU-B 113). 

 [5900]. 21138 



and Frederickson, Matt. 



Provisional elements of (599) [1906 UJ]. 

 Washington D.C. Pub. U. S. Naval Obs. 

 (Ser. 2) 6 1911 (B 97-B 98). [5900]. 



21139 



• Elements of (600) 



[1906 UM]. Washington D.C. Pub. U. S . 



