I found this book published in 1901, you can either download it or read online:

"The fig: its history, culture, and curing, with a descriptive catalogue of the known varieties of figs (1901)"
http://archive.org/details/figitshistorycul00eise

To read online, just click on "Read Online" on the left side after you click on the link above. You can zoom in or out with + or - in your right bottom corner. You can also use a slider at the very bottom to fly through the pages quickly.

I spent about 30 min going through pages and pages, very interesting. The author covers propagation starting from a cutting to fig varieties from different countries like Spain, Portugal, France, Greece and others. There is a nice chapter dedicated to California.
Many varieties we know of today also mentioned, some were new to me. There is even a section of how to cut a cutting, I am attaching it over here.

Enjoy!

Thank you very much for this, I had been looking to look through this book but hadn't found it yet, excellent find.

Sure! It seems the library contains quite a few older edition books on different topics.

As Herman mentioned on GW forum Gustav Eisen most respected in his eyes and i understand what he means in that thread.
Have had that PDF file for 3 and 1/2 years now on hardrive.

Has he written any other fig books?

Green here is a short bio  - http://researcharchive.calacademy.org/research/library/special/bios/Eisen.pdf
He did book on Raisins around 1897.

Wow! What a bright man, he was involved in so many different things. 
His love of California changed its landscape forever.