Thanks Barry! I should probably find a reprint to read at some point.
bgar, that is an amazing photo of Chadwick! Thank you also for the additional information on his writings. To try to read the article, you can right click on the image and save it to your computer. Then open the photo and use the magnifying glass in your photo viewing software. Or, email me at
aelefson@hotmail.com and I will send you a better copy.
Alan