97 



85. Some Electric Furnace Experiments on the Emission of 



Enhanced Lines in a Hydrogen Atmosphere. Arthur 

 S. King. 6 pp. 



86. Intermediate Degrees of Darkening at the Limb of Stellar 



Disks with an Application to the Orbit of Algol. 

 Harlow Shapley. 7 pp. 



87. The Spectra of Four of the Temporary Stars. Walter 



S. Adams and F. G. Pease. 4 pp., i pi. 



88. On the Distribution of the Elements in the Solar Atmos- 



phere as given by Flash Spectra. Charles E. St. John. 



21 pp. 



89. Some Spectral Criteria for the Determination of Absolute 



Stellar Magnitudes. Walter S. Adams and Arnold 

 Kohlschtitter. 14 pp. 



90. The Spectroscopic Orbit of RX Herculis Determined from 



Three Plates with a New Photometric Orbit and Abso- 

 lute Dimensions. Harlow Shapley. 18 pp. 



91. New Variables in the Center of Messier 3. Harlow 



Shapley. 5 pp. 



92. On the Nature and Cause of Cepheid Variation. Harlow 



Shapley. 18 pp. 



93. Anomalous Dispersion in the Sun in the Light of Obser- 



vations. Charles E. St. John. 44 pp. 



94. The Variation with Temperature of the Electric Furnace 



Spectra of Vanadium and Chromium. Arthur S. King. 

 30 pp., 3 pi. 



95. The Flash Spectrum without an Eclipse, Region \48oo- 



X66oo. Walter S. Adams and Cora G. Bur-well. 31 pp. 



96. List of Stars with Proper Motion Exceeding 0^50 Annu- 



ally. Adriaan van Maanen. In press. 



97. Photographic and Photovisual Magnitudes of Stars near 



the North Pole. Frederick H. Seares. In press. 



98. A Comparison of the Harvard and Mount Wilson Scales 



of Photographic Magnitude. Frederick H. Seares. 

 In press. 



99. Miscellaneous Notes on Variable Stars. Harlow Shapley. 



In press. 



100. Effective Wave-Lengths of 184 Stars in the Cluster 



N.G.C. 1647. Ejnar Hertzsprung. In press. 



101. Effective Wave-Lengths of Absolutely Faint Stars. 



Ejnar Hertzsprung. In press. 



102. Color Indices in the Cluster N.G. C. 1647. Frederick H. 



Seares. In press. 



103. Researches on Solar Vortices. Carl Stormer. In press. 



