CONTENTS 
Page 
Physics. — Cyi^indrical Distribution of Nodai, Strength around run Pips 
Normal • . By C. Barus 119 
Physics. — Ionization and Absorption Effects in the Ei^Bctric Furnace 
By A.S. King 123 
Pathology. — Preliminary Note on a Biometrical Study of the Relations 
OF Certain Viscera in Tuberculosis . By R. Pearl and A . L. Bacon 125 
Zoology. — The Effect of Ether upon the Migration op the Scale Pigment 
and the Retinal Pigment in the Fish, Fundulus Heteroclitus 
By L. C. Wyman 128 
Zoology. — The Diverse Effects of Adrenalin upon the Migration of the 
Scale Pigment and the Retinal Pigment in the Fish, Fundulus Hetero- 
clitus, lyiNN By A. S. Gilson, Jn 130 
Zoology. — A Side Line in the Importation' of Insect Parasites of Injurious 
Insects from ONE Country TO Another . ... By L. 0. Hoivard 133 
Mathematics. — On the Location of the Roots of the Derivative of a 
Polynomial By J. L. Walsh 139 
Astronomy. — On the Distribution of the Velocities of Stars of Late 
Types of Spectrum . By G. Stromherg 141 
Biology. — Contribution to the Energetics of Evolution . By A. J. Lotka 147 
Biology. — Natural Selection as a Physical Principle . By A. J. Lotka 151 
