50 LETTERS ON SCIENTIFIC SUBJECTS. 



and which in our manuscript is thus in the text, si in consi- 

 der ationibus decepti fuerimus in quart a diei, ut sit inter ipsam 

 et suam differentiam quarta diei ; this clause, I say, is not 

 found in the manuscript or printed book of All Souls ; in the 

 printed book not at all; and in the MS. 'tis only in the mar- 

 gin thus : ut sit inter ipsam et suam differentiam quarta diei. 

 Other diversities of reading in All Souls' MS. you shall find 

 noted in the margin of one of these copies. As for the mar- 

 ginal notes in our MS., Mr. Warden hath with great labour 

 transcribed them ; they being written in a very small charac- 

 ter, and full of abbreviations. This is all I thought good to 

 acquaint you with concerning this matter. If you shall de- 

 sire to be farther certified in any special point out of this MS., 

 you shall find me (besides others) as willing to perform at any 

 time, as now to promise my best furtherance therein ; and so 

 I leaving you to God's protection, rest 



Your friend, 

 THOMAS MAN. 



THOMAS LYDYAT TO THOMAS MAN. 



[MS. Bodl. 313.] 



Alkerton, May 12th, 1625. 



Sir, Touching the letter I received from you, dated April 

 the 19th, almost three weeks since, together with the tran- 

 script out of the Latin paraphrase of Ptolemy, as I termed it 

 in my letter, wherein I desired it to be sent me almost two 

 years agone, then deeming it a matter of no greater moment 

 or difficulty, but that I might easily have obtained it within 

 two or three days ; whereas you write, you fear neither of the 

 copies will answer mine expectation : truly mine expectation 

 thereof was no greater than I signified in my letter, and had 

 before set forth in print, and given copies thereof into your 

 library, that you needed not to be ignorant of the matter. 

 But I must confess it fell out very greatly contrary to mine 

 expectation, that it was so long differred, which I imagined 

 might have been so soon obtained; and that made me at 

 length the more earnestly to urge not only to others of your 

 fellows, my kind friends, according as I met with them, but 

 in the end also to your worthy, and by me accordingly re- 

 spected, Mr. Warden himself; I say the more earnestly and 

 almost obstinately to urge that which in the beginning I did 

 not so much respect : because I began to suspect, that not the 

 difficulty of the matter, but some sinister surmise arising upon 



