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Show c · CRteru111 ei · li~c rc ft ~xio j Bad A; inpri. ma figura, ae- D cdfa rio fiat » lineamB A, & alias ri propio res , mauifetlu euadit vocalS bane rcflexionem fieri per lineasreflcxas, F . qu:r fine e~dcnt . (Un1 inddentihus, licuti reflexa B A,eft eadem cum incidcnte A B. & prt· \terea lieri per angulos rdlcxionis, angplis incidcntiz zquaJes ;_ fic_in .figu. ra angu lis incide a cia: A 8 C, A B D, zquales fuot anguli· re.flextoms CBA._ DB A, cum fint ijdeni re vera tam illis ~ ac proindc omncs fine recti. Muri plani-'Jui!Jus (onus oblique tantum occurrit, non rifleBun~ echum ad ipfom $Qnorurn. Theorema ·1 V. . I D e'lt przmi1Iis facile ded ucitur, fi enim omncs line~ murum oblique perun~·, oblique pariter ,& quidcm in auerfam pa·rtem c-xcurrent;qua· · re omni~ ill a \'ox reflex a , neutiquam ad Sonorum rcuertitur, led in auer• fam ab c=o partem deflettec~ quod ctiam experientia comprobat. vtinfu •. ~riori fecunda figura, fit Sonorum A, in co fitu ad murum DB E, fupra... horizont001 erettum~ad quem omnis.Jinea vocalis oblique fuis occurrat, Yti facie linea A B; cius rc:flexa iuxca leges angulorum iocidcnri~ & rcfexionis fie B C: palam efl Echum cxaudiri ab alcero, qui fit in C,no• autern a Soooro A, idque ob alia ram rationcm. quare fi paries fit ad.eoma-· g_Rus, vt ei in orbem vox oblique accidac, Echo parit-:r in orbcm cxaudi~ npotedc, ab ~udicoriliu~ fcilicet in orbcm c rcgionc muri cenfticutis. " C onfiEtarium • H Inc pa!amfie cut ~difida in edito fira,S~noro in pJanitie conffituto, non er rdoner.t E:dw. ratio eft qLtoniam omncs Jinez a Sonoro fur- ~ 1tlm afcendentcs ob!iqr•e hi(; .. e muris·occurrunc, ac proinde fl.¥ fum Yer· fum ufle_ttu.!Jt~r · vodc tota iliJ vox, iuxca leg's aogulorum ~ incide~tir, • , & rcfltxiOors m altum rcuez ~era cur. vc in hac fequ. liaura omocs Jmea '. ' ductc · •'""· .. ·' 'C!. E chfJ., . ~ iJ "' ~ - -·~ · . duaz,~i.s.o~r.Q 4 ,: ~d rii~rdm Bt. necdfario fur fum verfus E, repc 1-, luntur; del>e_~ e9Un-~.n~~l'¥ refle·:· xionis C IrE, dre zquahs. t ng,ulo,. incideptia: D B A, atque 1~ pane auerfam, v..idcJi,c~~ fu.tfum"'~crge· re. Eadem-de ca~(~.~liuns .propu· Goacu ~orum ei S~n?t'?.· non. r~d~ / die Echo, quod exdltt ltlth~t1zon~ tali pl~Qjtie _(u-pra 11uam ptopu~ gnaculum engituf.'t:}uoR~m ~um ~n oppofitam pattern, ft.t 1p~bo~-~ tum, vocem par iter in oppofio~dl )' p.1rtem , videJiceqn aft~~ r~e~~ be rat. hattenus de fitu ·tnter .s.~_ no rum & Ref! eden~ , nunc de int teruallo eorumdem. : ' . De interuallo -feu difla mia inter &~orum @t 7( ejlecicns ,' P Rzter prxdiCl:.a.s condi~iones Refie~entis, ac·prcr·t""r.firum ~ius ~d s~,; · noruru, n~ceife ell vt lnteruallunl'toter vn·umque fie omm o hbefu, ac pltens; ex:perientia enim. docee multo melius fonu~ 11 & voc:~rq ~ec;.urr rere, cum null~ intcrceduot arboces, nU;Jhr~ fegeces, herba: nul a:. opttme., autem vbi interij<:itnraqua ftagoans, aut fine ·murmur~ Ruens.q orum,_, ratio eft, quoniam vox d<.'f:_t·tur non _fine ~gttationc ac:ns, aer auteyn ~c.Je .. , rius moueri pQt<:tt per 1ncd!um ommno hberu~ acpat~n~, 9.uo.~ ~~~?J.IrU i'q neutiquam reftftic. vbi aduertendum e~., q~od quanuts 10 prolatx?ne v~ ~ cis, nihil.interponatur in linea normJ.l! mter So·1orum, & Refle.a:eos, aer. tam en qui iuxta. eam commouerur, c?'• ~xus ell ~um ae~e pro .. x~~o, quern. fecum limul oomtnouec,.quare fi proxlmus ha:fertt herb!s;,f~g-.ttJus,arboribus, difficilius ab co commoueb-itur, ac.proinde ¢~m ahqLJantulu~, re· tardabic, vode nee fonicus poterit cele~rime parf~l:i accurtere, & re: ·currere. luc de caufa fecus flumina, _non obfirepentta, & Jacus' perf~tte .rudiuntur voces, &.fooi vel ad m~ximam diltantiam •. adden~a eft enam alia caufa,idelt,angu lus fa _ms ~ fuperficie aqua-_, aut r_1px; vc .m Theor I?· ~apparcb 1( C contrario !OX qu.z in CO~clufis•lOClS r CU!Ufmodt, fuot l~ngt~: fimi Xylh, vndiquc muns, ac Jacun~nbl.ls conclufl) proft:rtut: n~q~1~ d__t .. "!!flinch~ rcfl d ti in Echum, fed in Bombum confund1tur, vox em.tn HH bt_c~ • cl~fa, pet Vl-rios, & in.equales parietum, pauime~Hi, lac:uuanfque offc~~ liones ac repul( •' agicatur, at.q~e c o:1funditur. pra:terea fa:pe :erooal tt~. fitftmulab-vtl'oque extre.mo pari~te ~fij J q~are dua:: HfOnan~la! ru~t llb1 . . , . H I-l h ·lOUlC\:m . . |