2

Of Kefracled Dials in IVatei

AS thesectst s arevaried, ac-cording asthe Indexand opa-eons, andpellucidbodies doestand.

Many v arieties be-sides the ir-regularityof the opa-cous bodiesthat are toreceive thelineaments,which ofthemselvesare infinite.

ut one lc 1 action at its first entrance into the Pellucid; OrC fb le pacous body (upon which the shadow of the In-su* a a ^ C r 11 P* crcet b 1)0 farther, but is made visible) mayat omc distance from the Pellucid, and io the Sunsiaycs pa e out of the Pellucid into the Air again,before they°f lC n . t0 tie Opaeum. By which meanes they suffer a double

nntfT n n u 2t .^ eir 1 Cntnncc into > the other at their goingout or,the Pellucid body. G

*^ U1 ^ 1 C j 9 P°^ nt of the Index may be within theP .ri UC * i ? an , /o the Suns beames must first enter into the“ uci , an luster one refraction , before it comes to thepoint o tie Index, and afterwards, cither meet with anpacous body close joyned to the outward superficies of thePeHucid, and lo softer no more refraction , but be there ter-th ” p « d 'O" c ie > lfthe Opaeum stand at a distance from

Air a C nds K ff, 1 l< r Suns ^ e ^ mcs again paste through thePelluckft b^^ a j eC ° 1K rc ^ ra ction (at their going out of the

superficies Them^ body, or dark

^° mt tBc * nc * ex ma y stand without theboth s ' n 11 - r , K ? llns beames be twice refracted through

she Pe CidT 8 bef ° K t, ' ey - COmci “ r--e pohnofchc IndcS,

of thr*! I ein # inter P°st*st between the Sun and the pointthe pim’ the point of the Index standing betweenthe Pellucid and Opacous bodies. °

varieV ° n ^ 5 P°tWatct, or any Inch transparent houid, the

llwTvT r P ts ? m , any ' Bccausc thc superficies of it, «liSannl V W r i ;p thcHOrizon ' a ^ because likewise theVessel th^tT l l seiIf e c °ntiguously to the Opacous body arSStt of?h S° nCly bci !**on C fraction, thc'irrc-

some ^ u r,! at Fontaines the Water is trouble-

which * <°T ^ o leBa ^ on h y Water alone can be but one,

the vaV** llns beames entrance into the water; Butaccoi / ie ^ °i lines of the Dial is two-fold,

out stI In ^ ,aS i K Illdcx -P oin t may stand either within or with-out (that is above) the Water.

vJ£| ti k Water ^ put . into a Glasl ' e or any such Pellucid0 f o r ’, - tn m / y the varieties be as many as were the former

andOn S,nrC P v ct<)ftlie sitIlation of the Index, Pellucid,and Opaeum. Yea , and more, because before , the Pellucid

was