Dutch astrological manual by mysterious author, untrimmed
El var oi. Astrologia; of Sterren-voorzeg-kunde. in alle deszelfs gronden nagespoort, en ontdekt. Rotterdam, J. Tiele & A. Bothall, 1762. 8vo (22 x 14,5 cm). 198,  pp. Original marbled wrappers. The date on the title-page changed in manuscript from 1761 to 1762. In fair condition. The wrappers damaged, three deaccession stamps of the Rijksmuseum, a few stains, leave A4 has been cut off and is followed by a inserted blank leaf, possibly indicating that A4 should have been replaced by a cancel. Untrimmed, leaving deckle edges and point holes intact.
Astrological manual by an author whose identity is still unknown.
"El Var Oi" had previously edited an astrological journal, Astronomische waernemingen; of de konst, van den beroemden astrologist, J: C: Ludeman; ontdekt (1761). Illustrated with numerous tables, the present work was intended as a vade mecum, providing ready reference.
Both the Astronomische waernemingen as the present works have been attributed to Franciscus Lievens Kersteman (1728-1792), an author and conman who spent 20 years in prison and who wrote extensively on the German astrologer J.C. Ludeman, but this attribution is highly uncertain.
STCN (3 copies); cf. Van Vliet, 'Astronomische Waernemingen (1760-1761)', in: Encyclopedie Nederlandstalige Tijdschriften (online).