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40 (XL) — 1929-1930
N.S.W. Blastfurnaces, 380.
Natal, Coal in, 340.
Natural Forces, Control, 193.
Nature of Coal, 146.
Nicholson, A. D., Sketch, 1, 25.
Nitrogen, 83.
North-country Pit, Small, 265.
Notches, Flow of Water, 282.
Notes on Examinations, 55, 185, 202, 252.
Nozzles, Flow of Water, 250.
Numbers, Powers and Roots, 210.
Nystagmus, Lighting and, 373.
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