4 Issues Science AAAS Magazine September 1939 Biochemistry Vintage

Stored for years 
Pages are yellowing 
Marks and small tears on some of the pages 
Some of the pages have writing on them
The American Association for the Advancement of Science
Lots of articles and advertisements
Included in this lot
September 1, 1939 - Vol 89 - No 2331
September 8 1939 - Vol 89 - No 2332
September 15, 1939 - Vol 89 - No 2333
September 22, 1939 - Vol 89 - No 2334