Link to PDF of 1850's book on Turning and mechanical manipulation, by C. Holtzapffel

This has descriptions of hones and oilstones etc. of the day (1850's), cutting tools and abrasives and what to do with them. It is a fully digitised book for non commercial use and is 14.4mb large. Quite interesting. If already here somewhere then apologies for reposting.

http://books.google.co.uk/books?id=f...=en#PPA1013,M1

Thanks
Stephen

Very interesting!
The Coticule is refered as Yellow German (old rock)
See from page 1146

Thanks for that link, I was not aware that his book had been digitized.

Regards

Christian

thanks for posting this, I downloaded it to my puter for further perusal.

Thank you so VERY much for this link. I'll be using this for other books too