First edition of, according to Lalande, the best book of the period on trigonometry and its application to astronomy. The work was actually a handbook covering all aspects of the field for the practicing astronomer and contains for the first time the trigonometric formula which now bears Cagnoli's name. In..... More
Rare first edition with text of this remarkably illustrated star atlas, the first to employ the woodcut to spectacular effect by showing white stars against a black background in representing the constellations. Most star atlases appearing before Semler’s work were by contrast engraved on copper, a medium not typically used..... More
Extremely rare ephemeral Bosinada [popular verse in Milanese dialect – see below] in honor of Sophie Blanchard (1778–1819), the first professional female balloonist on the occasion of her solo flight August 15, 1811, organized for the celebrations of Napoleon's birthday in Milan. The balloon left Milan on the evening of..... More