But there is a great source that I found for old textbooks. Yes, I said old! The two in the photo are both by Vogel and one was first published in 1937, and the other in 1948. But both have perfectly good and even current chemical preparations. Some things really do not change. I bought these online three years ago. But this post is not about buying textbooks. It is about finding good old textbooks online.
Well, I found a treasure trove of 128 volumes containing more than 66,000 pages of really good but old works in Chemistry, Plant Biology, Metals, Electrochemistry, and more. It even contains C. L. Stongs "Science Projects" from 1960. The dates range from the late 1800's to 1970. They are complete and in a PDF format so you will need Adobe Reader 5 or later.
The site has some internal links and is a really good resource for both historical and interesting processes and information. The web hosts have put some serious effort into the site and it deserves a look here. Some of these are really page turners...Ken