CONTENTS OF VOL. I. 



NO. U 



PAGE 



1. Notes on the Theory of Electrons 5 



William Duane 



2. An Electric Thermostat 13 



William Duane and Charles A. Lory 



3. On the Velocity of Chemical Reactions 19 



William Duane 



4. On the Congruences of Twisted Curves 29 



Arnold Emch 



5. Cyclographic Transformation of Ordinary Space , . 33 



Arnold Emch 



(1 Two Notes on the Ellipse 45 



Edward L. Brown 



7. Notes on Early Greek Cosmogonical Speculations . . 49 



George Norlin 



8. Play 59 



Arthur Allin 



NO. 2. 



page 



1. Applications of Elliptic Functions to Problems of 



Closure 81 



Arnold Emch 



2. Designs of Fixed Ended Arches by the Elastic Theory 135 



Chas, Derleth, Jr. 



3. On the Action of the Halogens and the Sulphur Hali - 



DES Upon Paratoluquinoline 159 



John B. Ekeley 



