BOSCOVICH, Ruggero Giuseppe (1711-1787). [Collection of offprints from the Giornale de letterati, Rome 1747-1748]. Six offprints bound in one volume, 4o (205 x 150 mm). (Occasional light foxing). Contemporary vellum over pasteboard, marbled edges.

Details
BOSCOVICH, Ruggero Giuseppe (1711-1787). [Collection of offprints from the Giornale de letterati, Rome 1747-1748]. Six offprints bound in one volume, 4o (205 x 150 mm). (Occasional light foxing). Contemporary vellum over pasteboard, marbled edges.

CONTENTS:
1) Dialogi sull' aurora boreale. [1748]. Collation: A-F4. 48 leaves. Half-title. Woodcut tail-pieces and initial. (Marginal tear to E2.) Whyte pp. 37-38 and 216; Norman 274.
2) Parte prima [- secunda] delle riflessioni sul metodo di alzare un infinitinomio a qualunque potenza. 1747-1748. Collation: A-B4; 2A-B4. 16 leaves. Drop-titles. Two manuscript double-page mathematical tables in a neat contemporary Italian hand bound in at end (one later pencilled correction), followed by a blank leaf. Whyte p. 215; Norman 273.
3) Tre osservazioni dell'eclisse del sole seguito in questo mese. 1748. Collation: A8. 8 leaves, A8 blank. Drop-title, woodcut tailpiece. Whyte, p. 216; Norman 276.
4) Soluzione geometrica di un problema spettante l'ora delle alte, e basse Maree, e suo confronto con una soluzione algebraica del medesimo data del Sig. Bernoulli. [1748]. A-B4. 8 leaves. Drop-title, woodcut diagram. Whyte p. 216; Norman 275.
5) Dissertazione della tenuit della luce solare. [1747]. Collation: A2 B-D4. 14 leaves, D4 blank. Drop-title. Whyte p. 216; Norman 272.
6) Dimostrazione di un passo spettante all'angolo massimo, e minimo dell'iride, cavato dalla prop. I. della 2. parte del lib. I dell'Ottica del Newtono; con alcune riflessioni sullo stesso capitolo. [1747]. Collation: A-D4. 16 leaves, D4 blank. Drop-title, woodcut text diagram. Whyte pp. 215-216; Norman 271.

A fine contemporary Sammelband of rare offprints of articles, all FIRST SEPARATE EDITIONS, on astronomy, mathematics, and optics by the last great polymath. Included here are a mathematical essay, a description of the solar eclipse of 25 July 1748, a discussion of the aurora borealis, a paper on a geometrical method of determining the hours of high and low tide, and two papers on optics, the first on solar light, and the second an analysis of Newton's discussion in the Opticks (1704) of the properties of light that produce the colors of the rainbow.