40 SMITHSONIAN MISCELLANEOUS COLLECTIONS. 



1882. Sunlight and Skylight at High Altitudes (Professor Langley's observa- 

 tions). Nature, London, October 12, 1882, pp. 586-589. 



1882. Sunlight and Skylight at High Altitudes. From the Proceedings of the 

 Meeting of the British Association at Southampton (Nature). 

 American Journal of Science, New Haven, November, 1882, vol. 24, 



pp. 393-398. 



1882. Sunlight and Skylight at High Altitudes. From the Proceedings of the 

 Meeting of the British Association at Southampton (Nature). 

 From the American Journal of Science, New Haven, November, 1882, 

 vol. 24. pp. 393-398. 



1882. Sunlight at High Altitudes. Philadelphia Public Ledger, November 17, 

 1882. 



1882. The Man in the Sun When Venus is in Transit. The Pittsburgh Dis- 

 patch, December 5, 1882, p. 5. 



1882. Transit of Venus. Pittsburgh Dispatch, Pittsburgh, December 9, 1882. 



1883. Observation of the Transit of Venus, December 6, 1882, Made at the 



Allegheny Observatory. Monthly Notices of the Royal Astronomical 



Society, London, vol. 43, No. 3, pp. 71-73, pi. i. 

 1883. Observation of the Transit of Venus, December 6, 1882, Made at the 



Allegheny Observatory. Reprinted from the Monthly Notices of the 



Royal Astronomical Society, London, vol. 43, No. 3, pp. 71-73, pi. i. 

 1883. Schreiben von Prof. S. P. Langley, Director des Sternwarte Allegheny, 



an den Herausgeber, betrefifend den Venusdurchgang 1882, December 



6. Astronomische Nachrichten, No. 2481, Kiel, pp. 141 -142. 

 1883. Transit of Venus. Sidereal Messenger, Northfield, Minn.. January, 



1883, pp. 262-263. 

 1883. Distribution of Solar Energy. Proceedings of the Society of Arts. pp. 



78-86. 

 1883. The Selective Absorption of Solar Energx'. American Journal of Sci- 

 ence, New Haven, March, 1883, vol. xxv, pp. 169-196, pi. 3. 

 1883. The Selective Absorption of Solar Energy. From the American Journal 



of Science, New Haven, March, 1883, vol. xxv, pp. 1-28, pi. 3. 

 1883. The Selective Absorption of Solar Energy. London, Edinburgh, and 



Dublin Philosophical Magazine, London, 1883, vol. 15, pp. 153-183. 

 1883. The Selective Absorption of Solar Energy. Annales de Chimie et de 



Physique, Paris, 1883, vol. 29, pp. 497-542. 

 1883. The Selective Absorption of Solar Energy. Annalen der Physik und 



Chemie, Leipzig, 1883, "^ol. 19, pp. 226-244, 384-400. 

 1883. Die auswahlende Absorption der Energie der Sonne. Annalen der 



Physik und Chemie, Leipzig, 1883, Neue Folge, Band xix, pp. 226-244 



and 384-400, pi. 2. 

 1883. Die auswahlende Absorption der Energie der Sonne. Separat-Abdruck 



aus den Annalen der Physik und Chemie, Leipzig, 1883, Neue Folge, 



Band xix, pp. 226-244 and 384-400, pi. 2. 

 1883. Venus and the Transit of 1882. Cassell's Science "for All, London, pp. 



300-307, figs. ID. 

 1883. The Spectrum of an Argand Burner. Science, New York, June i, 1883, 



vol. I, No. 17, pp. 481-484, h(^. I. 

 1883. Sur 1' Absorption Selective de I'Energie Solaire, Traduit par M. Gustave 



Richard. Annales de Chimie et de Physique, Paris, August, 1883, 5th 



serie, vol. xxix, pp. 497-542, pi. i. 



