Euclid, Elements
Thomas L. Heath, Sir Thomas Little Heath, Ed.

---

end, but the letter of dedication to François Briconnet by Jacques Lefèvre is dated the day after the Epiphany, 1516. The figures are in the margin. The arrangement of the propositions is as follows: first the enunciation with the heading Euclides ex Campano, then the proof with the note Campanus, and after that, as Campani additio, any passage found in the edition of Campanus' translation but not in the Greek text; then follows the text of the enunciation translated from the Greek with the heading Euclides ex Zamberto, and lastly the proof headed Theo ex Zamberto. There are separate figures for the two proofs. This edition was reissued with few changes in 1537 and 1546 at Basel (apud Iohannem Hervagium), but with the addition of the Phaenomena, Optica, Catoptrica etc. For the edition of 1537 the Paris edition of 1516 was collated with “a Greek copy” (as the preface says) by Christian Herlin, professor of mathematical studies at Strassburg, who however seems to have done no more than correct one or two passages by the help of the Basel editio princeps (1533), and add the Greek word in cases where Zamberti's translation of it seemed unsuitable or inaccurate.

We now come to

---

II. Editions of the Greek text.

1533 is the date of the editio princeps, the title-page of which reads as follows: *e*u*k*l*e*i*d*o*u *s*t*o*i*x*e*i*w*n *b*i*b*l<*> *i*e<*><*> *e*k *t*w*n *q*e*w*n*o*s *s*u*n*o*u*s*i*w*n. *ei)s tou= au)tou= to\ prw=ton, e)chghma/twn *pro/klou bibl. d_. Adiecta praefatiuncula in qua de disciplinis Mathematicis nonnihil. BASILEAE APVD IOAN. HERVAGIVM ANNO M.D.XXXIII. MENSE SEPTEMBRI.

The editor was Simon Grynaeus the elder (d. 1541), who, after working at Vienna and Ofen, Heidelberg and Tübingen, taught last of all at Basel, where theology was his main subject. His “praefatiuncula” is addressed to an Englishman, Cuthbert Tonstall (14741559), who, having studied first at Oxford, then at Cambridge, where he became Doctor of Laws, and afterwards at Padua, where in addition he learnt mathematics—mostly from the works of Regiomontanus and Paciuolo—wrote a book on arithmetic¹ as “a farewell to the sciences,” and then, entering politics, became Bishop of London and member of the Privy Council, and afterwards (1530) Bishop of Durham. Grynaeus tells us that he used two MSS. of the text of the Elements, entrusted to friends of his, one at Venice by “Lazarus Bayfius” (Lazare de Baïf, then the ambassador of the King of France at Venice), the other at Paris by “Ioann. Rvellius” (Jean Ruel, a French doctor and a Greek scholar), while the commentaries of Proclus were put at