THE 



PHYSICAL REVIEW 



American Physical Society 



Eighteenth Volume Begins JANUARY 1904 



BLISHED MONTHLY ANNUAL SUBSCRIPTION $5.0 



SAMPLE COPY UPON REQUEST 



THE MacMILLAN COMPANY, 



Recent Scientific Publications 



HiGGiNs' Lessons in Physics. 



Conn's Bacteria, Yeasts, and Molds in the Home. 

 Young's Manual of Astronomy. 

 Bergen's Botany Note-book. 



Bergen's Elements of Botany. Revised Edition now r 

 Meier's Herbarium and Plant Description. 



With Directions for Collecting, Pressing and ^Mounting Spec 

 McGregory's Manual of Quantitative Chemical Analys 

 Millikan's Mechanics, Molecular Physics, and Heat. 

 Miller's Laboratory Physics. 



