4360 



IGO 



Descrptive Astronomy. 



4360 Photographs of Sun (;.' , 

 references to pubUshed 

 reproductions). 

 Drav/ings ot Sun (ditto 

 ditto). 



Maunder, E. Walter. The solar 

 atmosphere at different levels. Know- 

 ledge, London, (N. Ser), 1, 1904, (150- 

 153, with pi.). 



Lester, 0. C. On the oxygen absorp- 

 tion bands of solar spectrum. [Abstract 

 of thesis Yale Univei-sity, 1904. J Amer. 

 J. Sei., Xew Haven, Conn., (Ser. 4), 18, 

 1904, (1 17-150, with text fig. and 3 pis.). 



Trowbridge, John. On the gaseous 

 constitution of the H and K lines of the 

 solar spectrum together with a discus- 

 sion of reversed gaseous lines. Amer. 

 J. Sci., New Haven, Conn., (Ser. 4), 15, 

 1903, (243-5^48). 



SPJtCTWSaOPY OF SUX AXD 

 ECLIPSES. 



4500 SOLAR SPECTRUM (IN- 

 TEGRATED SUNLIGHT}. 



GENERAL. 



Intensity of atmospheric lines in the 

 solar spectrum. Cambridge, Mass., 

 Ann. Obs. Harvard Coll., 48, [1904? I, 

 ;i207]-219). 



[Abbe, Cleveland ] Aqueous vapor 

 lines of the solar spectrum. Washington, 

 D.C, U. S. Dept. Agric, Monthly Weath. 

 Rev.,31, 0903), [1904], (532). 



Blondlot, R. Ueber die Existenz von 

 Sonncnstrahlen, die durcli Metalle, Holz 

 <^tc. hindurch gehen. [Mebersetzuug. I 

 Physik. Zs., Leipzig, 4, 1903, (COO-601,)' 



Dufour, Ch. Comparalson entre la 

 lumiere du soleil et ceile de quelqurs 

 etoiles. Bruxeiles, Bui. Soc. astron., 

 1902, (23-29). 



Eberhard, G. Systematic ei-rors in 

 ihe wave-lengths of tlie lines of 

 Rowland's solar spectrum. Astropli. J., 

 Chicago, 111., 17, 1903, (141-144). 



Hasselberg, B. Researches en the 

 arc-spectra of the metals, VI. Spectrum 

 !.f molvbdenum. Astroph. J., Chicago, 

 111., if, 1903, (20-47). 



Langley, Samuel Pierpoiit. Rejiort 

 of the Secretary of the Smithsonian 

 Institution of all appropriations hereto- 

 fore expended by the Astrophysical 

 Observatory, results reached, and present 

 ■ •ondition of the work, in response to 

 Senate I'esolut ion of Febnaary 25, 1901. 

 [Published as Senate Document No. 20, 

 57th Congress, 1st Session], Washing- 

 K)n, D.C, 1902, (xxxiii + 30G, with pL). 

 29.5 cm. [Includes reprint of Annals 

 -if tlie Smithsonian Astrophysical 

 >iJbscrvator}-, \o\. 1] 



4510 Ultra-violet spectrum. 



Meyer, Edgar. Ueber die Absorption 

 der idtravioletten Strahhmg im Ozon. 

 [Auszug aus der Berliner Diss.] Ann. 

 Physik," Leipzig, (4. Folge), 12, 1903, 

 (849-859). / 



4533 Ultra-red Spectrum. 



PlIOTOGKArmC, BOLOMETRIC (WWK- 



LESGTHs, Maps, Photographs). 



Fowle, F. E., jun. The absorption of 

 water vapour in tho infra-red solar 

 spectrum. Washington, D.C, Smith- 

 sonian Inst., Misc. Coll. Q., 47, 1904, 

 (1-12). Separate. 25 cm. 



4540 Identification of Imes 

 with elements. 



Lockyer, J. Norman and Baxandall, 

 ¥. E. Enhanced lines of Titanium, 

 Iron and Chromium in the Fraunhoferic 

 spectrum. London, Proc. R. Soc, 74, 

 1904, (255-207) ; reprint, London, Hon. 

 Not. R. Astr. Soc, 65, 1905, (App. 1), 

 ([2]-[14]). 



Mitchell, S. A. The new gases neon, 

 argon, krypton and xenon in the chromo- 

 sphere. [With bibliography.] Astroph. 

 J., Chicago, IlL, 17, 1903, (224-228). 



4550 Changes in appearance of 

 lines (width, intensity). 



Pickering, Edward C[harles]. In- 

 tensitv of spectial lines. Cambridge, 

 ]\rass.', Harvard Coll., Obs. Cir., No. 72, 

 [1903J, [1-4J. 



