' Of OXFO %!&*$ H1%E> n 



tables increafe, till I meet with an Echo fit for the purpofe; 



20. Thereafon of the difference between day and night, why 

 it (hould return feventeen fyllables in the one, and twenty in the 

 other, may lie, I fuppofe, in the various qualities, and confti- 

 tution of the medium in different feafons the Air being much 

 more quiet, and ftock'd with exhalations in the night than day, 

 which fomthing retarding the quick motion of the voice to the 

 objeft, and its return to the fpeaker fomwhat more, (by reafon 

 the voice muft needs be weakned in the reflexion) muft necevTari- 

 ly give fpace for the return of more fyllables, 



2 1 . Amongft other tryals of this Echo, I difeharged a Piftol* 

 which made a return much quicker then my voice, and (at which 

 I ftill wonder) with a much different found from that the Piftol 

 made, whence I can only conclude, that the more forcibly the 

 Air is ftricken, (as alfo in the projection of a ball) the fooner the 

 refponfe is made, and that poffibly there may be fome founds 

 more agreeable to every Echo, than others. And it being my 

 Lord Bacon's opinion, That there are fome letters that an Echo 

 will hardly exprefs, and particularly the letter S, which, faies 

 he, being of an interior and hiffing found, the Echo at Font Cha* 

 renton would not return u ; hereupon I tryed,as well as his Lord- 

 fhip, with the word Satan, befi.de many others of the fame ini- 

 tial, but found the Echo here neither fo modeft or frighted, but 

 that, though the Devil has been bufie enough hereabout (as ftiall 

 further be (hewn near the end of this Hiftory) it would readily 

 enough make ufe of his name. 



22. Juft fuch another polyfyllahical Echo we have at Magdalen 

 College, in the water-walks, near the Bull-work called Dover 

 Peer ; it repeats a whole Hexameter verfc, but not fo ftrongly as 

 Woodcock.-' Where the true object of this may be, cannot fo well 

 be found by meafure, becaufe of the many Buildings interpofing ; 

 but I conjecture it may be about the publick Schools, or New Col- 

 lege *. I could gladly, I confefs, have aligned it fomthing fur- 

 ther off, becaufe I fear that diftance falls fomwhat fhort of our 

 former account, but the buildings beyond lying all lower then 

 thofe, it muft by no means be admitted ; which makes me think, 

 there muft be a latitude allowed in thefe matters, according to the 



Nat. Hifl. Cent. 3. Numb, aji. * Since, New College hath been advanced * Story higher, A. 1> 

 167$. this Echo is /omiuhata/ter'J. 



B 2 dif- 



