CORRECTIONS. 



Vol. XXIV, No. 1.— Bottom of p. 16: Vol. XXI II, No. 9, 

 should read — Nipher, Francis E., Studies of Properties of In- 

 tegral Numbers, 9 pp.; New Evidence of a Relation Between 

 Gravitation and Electrical Action, and of Local Changes in the 

 Electrical Potential of the Earth, 5 pp. 



