LXII PUBBLICAZIONI RICEVUTE DALL ACCADEMIA 



absence of scattering of light in space. - VI. The relation of blue 

 stars and variables to Galactic planes. - VII. A method for the deter- 

 mination of the relative distances of globular clusters. Washington, 

 1917; 6 fase. 8° (id.). 

 Shapley (H.). Studies based on the colors and magnitudes in stellar clusters 



(Contributions from the Mount Wilson Solar Observatory; Nos 115-117, 



126, 133, 151-157): 



I. The general problem of clusters. - IL Thirteen hundred stars 

 in the Hercules cluster (Messier 13). - III. A catalogne of 311 stars 

 in Messier 67. - IV. The Galactic cluster Messier 11. - V. Color-in- 

 dices of stars in the Galactic clouds. - VI. On the determination of 

 the distances of globular clusters. - VII. The distances, distribution 

 in space, and dimension of 69 globular clusters. - Vili. The Jumino- 

 sitìes and distances of 139 Cepheid variables. - IX. Three notes on 

 Cepheid variation. - X. A criticai magnitude in the sequence of 

 stellar luminosities. - XI. A comparison of the distance of various 

 celestial objects. - XII. Remarks on the arrangement of the sideral 

 universe idall'A.). 

 Pease (Fr. G.) and Shapley (H.). Axes of symmetry in globular clusters. 



Washington, 1917; 8° (Proceedings National Academy of Washington, 



1917) {dayli Autori). 

 — On the distribution of stars in twelve globular clusters. Washington, 



1917; 8° (Contributions from the Mount Wilson Solar Observatory, 129j 



Astrophysical Journal, voi. XLV, 1917) {id.). 



Dal 23 Febbraio al 23 Marzo 1919. 



Uouda (K). On magnetic analysis as a means of studying the structure 

 of iron alloys, s. 1. 1918; 8° {dall' A.). 



— On tlip temperature of the reversible A, transformation in c-ai'bon steels. 



Sendai, Japan, 1916; 8° {id.). 



— A criterion for allotropie transformations of iron at high teiuperatures. 



Sendai, Japan, 1917; 8° {id.). 



— On the magnetic investigation of the States of cementite in Annealed 



and Quenched carbon steels. Sendai, Japan, 1917; 8° (id.). 



— and Murakaml (T.). On the thermomagnetic properties of the carbides 



found in steels. Sendai, Japan, 1918; 8° {id.). 



— — On the structure of the magnet steels and its change with the beat 



treatments. Sendai, Japan, 1917; 8° (id.). 



— — On the structure of tungsten steels. Sendai, Japan, 1918; 8° {id.). 



— and Okubo (J.). Ferromagnetic substances and crystals in the light of 



Ewing's Theory of Molecular Magnetism. Sendai, Japan, 1916; 8° {id.). 



— — On the etfect of temperature on magnetisation considered from the 



Standpoint of Ewing's Theory of Magnetism. Sendai, Japan, 1916; 8" 

 {id.). 



I 



