C S083 ) 
PHILOSOPHICAL 
TRANSACTIONS. 
November 18. 1677* 
The CONTENTS. 
Mr. Ih^cNewtom j4nfwer to fome Conf derations upon his Do- , 
Brine of Ligkt and Colors, as it was Printed in Numb* So. of 
thefe Trails : In which Anfwer fome things being premifed about 
both the PtaUique andTheorique part of Optic ks 5 the Author sn^ 
deavoufstomakeitout^thzyhe^ffumesno Hypothefis /i?r bis 
DoSrine 5 that the Examiners and all other Mechanical Hy- 
pothefcs in their genuine conjlitution are conformable to his Do* 
Urine j and that it is not necijfpny to limit or explain his DoBrine 
by a?iy Hypothefis* To which is added a, Re/olution of three ifH'- 
portant Qasere's, i. Whether the Vnequal l^fraBions^ made 
without re/peB to anj inequality of incidence^ be caufedby tbedif" 
jerent J{efrangibiltty of fever al rays ; or by the Splittings Break: 
ing or Vijftpating the fame Ray into diverging farts f 2, Whether 
there be more than two Original colours ? 3. Whether Whiteneff 
be a mixture oj aU Colors ? Some pkrtictdars of this fubjeB re^ 
commended to further Confi deration^ An Accompt of two Boo\st 
I. Othonisde Gericke EXPERlMENTJ MAGDEBVI{Gl- 
CANOVA, Ih Tbefaurus MEDICINjE PRACTICE ^ 
Studio & opera Tbom^E Burnet, M A 5ce. 
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