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Y gwyddonydd

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Cyf. 5, Rhif 3 Medi 1967

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[front matter] View Article
Golygyddol Glyn O. Phillips. View Article
Gair o Gyfarch View Article
Hanes datblygiad cwsgfeddygaeth John Jones. View Article
Dyslecsia T.R. Miles ac Alun Waddon. View Article
Yr Athro Emeritus O. T. Jones : 1878-1967. W. Matthew Williams. View Article
Debygwn i : safbwynt personol ar wyddoniaeth heddiw / D. Tecwyn Lloyd. View Article
Cymru ein gwlad : clogwyni arfordir Cymru / S.B. McCann. View Article
'Y naturiaethwr gorau yn awr yn Ewrob' : Edward Lhuyd, F.R.S. (1660-1709). F.V. Emery. View Article
Nwy o Fôr y Gogledd W. Idris Jones. View Article
Gwyddonwyr mawr y byd : Joseph John Thomson (1856-1940) / Claude Evans. View Article
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Genesis peirianneg trydan William Gosling. View Article
The Contribution of Science to Education, Book review. R. A. R. Tricker. View Article
Nodiadau o'r Colegau C.,Ll., G. View Article
[other middle matter] View Article
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[back matter] View Article

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