Century ill. 



57 



ther there be any fuch Refilience in Ecchos, (that is* whether a Man mall hear 

 better, ifheftandafide the Body Repercuffng, than if he ftand where he 

 fpeaketh, or any where in a right Line between-,) may be tried, Triall like- 

 wile would be made, by Standing nearer the place of Repercufling, than 

 he that fpeaketh - 7 And again by Standing further offthan he that fpeaketh ? 

 And lb knowledge would, be taken, whether Ecchos, as well as Original! 

 Sounds foe not ftrongeft near hand. 



There be many Places, where you mall hear a number of Ecchos one af- 

 ter another : And it is, when there is Variety of Hills or Woods, fome nearer 

 fome further off: So that the Returne from the further , being laft created, 

 will be likewife laft heard. 



As the Voice goeth round, as well towards the Back, as towards the Front 

 of him that fpeaketh : So likewife doth the Eccho ^ For you have many 

 Back-Eccho's to the Place where you ftand. 



To make an Eccho, that will report, three or four, or five Words, di~ 

 ftin&ly,it is requifite, that the Body Repercuffmgfot a good diftance off.- For 

 if it be near, and yet not fo near, as to make a Concurrent Eccho, it choppeth 

 with ycu upon the fudden. It is requifite likewife, that the Air be not 

 much pent. For Air, at a great diftance, pent, worketh the fame effect with 

 Air, at Urge, in a fmall diftance. And therefore in the T rial! of Speaking 

 in the Well, though the Well was deep, the Voice came back,fuddenly And 

 would bear the Report but of two Words. 



For Eccho 's upon Eccho s, there is a rare Inftance thereof in a Place, which 

 I will now exactly defcribe. It is fome three or four Miles from Paris, 

 near a Town called Pont-Charentcn h And fome Bird-bolt (hot, or more, 

 from the River of Seam. The Roome is a Chaff ell, or fmall Church. The 

 Walls all ftanding, both at the Sides, and at the Ends. Two Rowes of pil- 

 lars, after the manner of Ifles of Churches, alfo ftanding $ The Roof all o- 

 pen, not fo much as any Emboument near any of the walls left. There 

 was againft every Pillar, a Stack-of Billets, above a Mans Height ; which 

 the Watermen, that bring Wood down the Seam, in Stacks, and not in 

 Boats, laid there (as it feemeth) for their eafe. Speaking at the one End, I 

 did hear it return the Voice thirteen feverall times * And I have heard of 

 othersj that it would return fixteen times: Fori was there about three of 

 the Clock in the afternoon : And it is beft, (as all other Eccho s are) in the 

 Evening. It is manifeft, that it is not Eccho 's from feverall places, but a 

 T offing of the Voice, as a Ball to and fro Like to Reflexions in Looking glaf- 

 fes; where if you place one Glafs before, and another behind, youfhallfee 

 the Glafi behind with the Image, within the Glafi before 5 And again, the 

 Glafi before in that 5 and divers fuch Super- Reflexions^ till the fiecies fieciei 

 at laft die. For it is every Return weaker, and more fhady. In like manner, 

 the Voice in that C^z^//,createth (peciem Jpeciei,cLt\d maketh fucceeding Su~ 

 per-Reflexiom^Vorit melteth by degrees, and every Reflexion is weaker than 

 the former.- So that, ifyoufpeak three Words, it will (perhaps) fome 

 three times report you the whole three Words ^ And then the two latter 

 Words for fome times And then the laft Word alone for fome times; 

 Still fading, and growing weaker. Ajid whereas in Ecchos of one Re- 

 turn, it is much to hear four or five Words In this Eccho of 

 fo many Returnes, upon the matter, you hear above twenty Words for 

 three. 



The like Eccho upon Eccho, but only with two Reports, hath been ob- 

 served, to be, if you ftand between a Hon fe, and a Hill,and lure towards the 



M 



