Download Dickdook Leshon Gnebreet - דקדוק לשון עברית

All the explanation is at On the Main Line but in this clean post you can download Judah Monis' Dickdook Leshon Gnebreet: A Grammar of the Hebrew Tongue (Boston, 1735) (דקדוק לשון עברית).

...and the Rogachever [sic]

Once we're on the topic--Rav Kook's NY Times obituary

(click to enlarge, or download as a PDF)

Hat tip: Aishdos