Google offers this pearl book in a downloadable form. It is a public domain book and may be quoted from freely.
American Pearls By Howard E. Washburn LINK
PS I have been studying on the Farlang webiste for a couple of hours. This is a fantastic public service-- to provide online facsimilies of many old and out of print books which are in the public domain but unavailable or of limited and high priced availability.
I must remember to personally thank them at the gem show this year. I hope some of you others will think of it too.
Ash and other historically minded may find
this page interesting