Note. The thanks of the author are due to Dr. Edwin H. Lewis, of the Lewis Institute, Chicago, and to Prof. John F. Genung, Ph. D., of Amherst College, for suggestions made after reading the proof of this series.
Note. The thanks of the author are due to Dr. Edwin H. Lewis, of the Lewis Institute, Chicago, and to Prof. John F. Genung, Ph. D., of Amherst College, for suggestions made after reading the proof of this series.