I have finally finished scanning the 1868 book Comparative Grammar of French, Italian, Spanish & Portuguese Languages by Edwin A. Notley that I first mentioned in April. It is 412 pages total and available to download in PDF format.
The original 19 x 13 cm book is set up with two columns on the left page for French and Italian and two columns on the right page for Spanish and Portuguese. If you want to print a section, I would advise experimenting with multiple page or booklet printing first. I tried to clean up the pages the best that I could considering the age of the book, and some of the pages are not as straight as I would like them to be, but I wanted to share this book sooner rather than later.
You can download the file from one of the following links. The file size is about 69.1 MB, so please be patient.
Disclaimer: This book is in the public domain in the US since it was published before 1922. Please check your country’s copyright laws before downloading if you are not in the US.
Learn Spanish and Portuguese at the Same Time
Basic Phrases with Pronunciation: French, Spanish, Portuguese, Italian, German, and Swedish Available
Comparative Grammar of the French, Italian, Spanish and Portuguese Languages
Learn the Romance Languages Together: Resources You Need
Intercomprehension of Romance Languages
Learn Spanish by Watching Telenovelas