Expositio vtrivsque observationis et Veneris et eclipsis Solaris ; factae Petropoli in specvla astronomica, die 23. Maii 1769 : Illvstrissimo ac excellentissimo domino Domino Comit de Orlow ... / a Christiano Mayer.

1 v. ;, 22 cm.

QB511 .M39 1769b

Solar eclipses., Venus (Planet), Eclipses of.

Petropoli [St. Petersburg] :: Typis Academiae Scientiarvm, 1769.

Book