[5], 67 leaves. Work authored by Rabbi Yehuda Leib ben Moshe of Hamburg. Section one includes the essence and quality of the lower world with the four elements and the essence of man…and thousands of facts. Approbations from the rabbis of Altona. The work discusses the idea coined by the Rishonim “ha’adom olam katan” [a person is a small world in and of himself]. The author also refers to scientific discoveries of his time. Printed on quality paper. Original, rubbed leather binding. Fine condition.