I found another writing of my grandfather S. S. Aiyar, when he was studying in Madison, Wisconsin. He specialized in Timber Products/Forest Products Organic Chemistry. He had a Box of samples along with chemicals. Rubber samples also i had seen in his box, Neoprene is one name i remember.

Journal of the American Pharmaceutical Association - Volume 11 Issue 12, Pages 999 - 1003
Published Online: 15 Apr 2008

Copyright © 1939 Wiley-Liss, Inc., A Wiley Company

• Phytochemical notes. 90. The seeds of Bixa orellana
• Phytochemical notes - S. S. Aiyar - From the Laboratory of Edward Kremers