Ad clarissimum virum, D. Henricum Savilium, equitem auratum, ipsum matheseos omnigenæ scientissimum, adeoq́[ue] geminæ in eadem professione lecturæ, in florentissima Academia Oxoniensi fundatorem perquàm munificum: Thomæ Lydyat Epistola astronomica, de anni solaris mensurâ
Subtitle: siquidem æqualis, ex vtris antiquorum astronomorum, Hipparchi, an potius Ptolemæi observationibus æquinoctiorum, collatis cum recentibus, determinada sit: pro confirmatione periodi octodesexcentenariæ solis & lunæ.
Series: Early English books, 1475-1640 -- 848:9.
Publisher: Typis Humfredi Lowns
Published: 1621
Place of publication: Londini
Language: lat
Format: Microform
Number of pages: 52
Subjects: Year -- Measurement -- Early works to 1800.
Genres: Early works to 1800.
Other titles: Epistola astronomica, de anni solaris mensura
Work titles: Epistola astronomica, de anni solaris mensura
Notes: With a final errata leaf.

Reproduction of the original in the British Library.

STC (2nd ed.) 17039.

Available electronically as part of Early English books online.

Microfilm. Ann Arbor, Mich. : UMI, 1960. 1 microfilm reel ; 35 mm. (Early English books, 1475-1640 ; 848:09).