Geological Magazine: Volume 72 -

Scotland: The Tertiary Volcanic Districts. By J. E. Richey. M.C., Sc.D. pp. vii + 115, with ix plates and 57 text-figures.
A. H.
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01 May 2009, p. 525
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GEO volume 72 issue 9 Front matter
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01 May 2009, pp. f1-f7
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On the Age of Certain Species of Trigonia from the Jurassic Rocks of Kachh (Cutch)
L. F. Spath
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01 May 2009, pp. 184-189
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One of the problems left unsolved in my “Revision of the Jurassic Cephalopod Fauna of Kachh” consisted of the determination of the exact age of certain Jurassic beds that had yielded (in addition to ammonites) species of Trigonia. Among these, T. smeei J. de C. Sowerby is of unusual, general interest; and, as readers of the Geological Magazine may remember, this species has been the subject of much controversy. It was one of the species whose “morphological position, viewed from the evolutionary standpoint”, caused them to be described as Cretaceous. Thanks to the continued researches of Mr. J. H. Smith, of Bhuj, who has been good enough to send me new collections from various critical sections in Kachh, I am now in a position to add to the evidence for a Jurassic age of a number of these species of Trigonia. If it be asked why, in a work on cephalopods, I have gone out of my way to express scepticism regarding the use of species of Trigonia for correlation, I can only say that this genus happened to be represented among the ammonite material sent to me. There is no reason, so far as I can see, why Trigonia should not be quite as useful for zonal purposes as ammonites. I have been equally sceptical about Stolley’s work on belemnites. But in either case I will leave the results to speak for themselves. It seems to me that if Upper Oxfordian species like Trigonia smeei and such allies as T. tenuis, T. tra-peziformis, T. remota Kitchin, not to mention the associated Astarte, Gervillia, Cucullaea, Exogyra, etc., could be claimed to be of Cretaceous age by one of the most eminent authorities, then it is time to remind the general palaeontologist again of what workers on ammonites have realized long ago.

Geologie Afrikas. By Dr.E. Krenkel. Vol. iii, part i. pp. viii + 1003–1304. Berlin: Borntraeger, 1934. Price, RM. 28.
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01 May 2009, p. 285
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Correspondence
Edward W. Berry
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01 May 2009, p. 143
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The Geology of South-Western Uganda, with Special Reference to the Stanniferous Deposits. By H. A. Stheeman. pp. xvi + 144, with 94 photos, 102 figures, 6 sections, and 6 maps. The Hague, Martinus Nijhoff, 1932.
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01 May 2009, pp. 93-94
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Kellaways Clay Fossils
J. Fowler
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01 May 2009, pp. 335-336
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Useful Aspects of Geology. By S. J. Shand. 2nd edition, pp. x + 183, with 30 text-figures. London: Murby, 1934. Price 6s.
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01 May 2009, pp. 46-47
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Les Ressources Minerales de la France d’outre-Mer. III: le zinc, le plomb, l’argent, le cuivre, l’or, les minerais radio-actifs, le mica, les pierres precieuses. IV: le phosphate. Paris: Société des Éditions Geographiques, Maritimes et Coloniales, 1935.
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01 May 2009, p. 480
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Announcements
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01 May 2009, p. 562
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GEO volume 72 issue 5 Front matter
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01 May 2009, pp. f1-f7
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Spessartite in the Cambrian Manganese Ore of Merionethshire
Austin W. Woodland
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01 May 2009, p. 384
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Northern England. By T. Eastwood. pp. v + 76, with viii plates and 26 text-figures.
R. H. R.
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01 May 2009, pp. 525-526
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Studi paleontologici e litologici sulla Cirenaica e sulla Tripolitania orientale. By various Authors. Reale Accademia d’Italia; Viaggi di Studio ed Esplorazioni; No. 3: Missione scientifica della Reale Accademia d’ltalia a Cufra (1931, IX), Vol. III. Roma, 1934. 493 pp., 31 pls. Price L. 100.
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01 May 2009, p. 189
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Life-history of the Sudbury Nickel Irruptive. I. Petrogenesis. By W. H. Collins. Trans. Royal Soc. Canada. 1935, pp. 123–177.
D. L. R
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01 May 2009, pp. 285-287
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Introduction aux Études Minières Coloniales. pp. viii + 349. Paris: Société d'Éditions Géographiques, Maritimes et Coloniales, 1934. Price 36 francs.
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01 May 2009, p. 47
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GEO volume 72 issue 8 Front matter
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01 May 2009, pp. f1-f7
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On the Dermal Bones of the Head in Labyrinthodont Stegocephalians and Primitive Reptilia, with special reference to Eotriassic Stegocephalians from East Greenland. By G. Säve-Söderbergh. Meddelelser om Grønland, Bd. 98, Nr. 3, pp. 1–211, pls. 1–15. Copenhagen, 1935. Price, Kr. 11.00.
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01 May 2009, pp. 190-191
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Chromite Deposits of Newfoundland. By A. K. Snelgrove. pp. 26. Bulletin No. 1 of the Geological Section, Department of Natural Resources, Newfoundland. St. John’s, 1934.
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01 May 2009, p. 94
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“Creep”
G. Vibert Douglas, J. E. Forster
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01 May 2009, p. 336
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Volume 72 - July 1935

Reviews

Scotland: The Tertiary Volcanic Districts. By J. E. Richey. M.C., Sc.D. pp. vii + 115, with ix plates and 57 text-figures.

Front matter

GEO volume 72 issue 9 Front matter

Original Articles

On the Age of Certain Species of Trigonia from the Jurassic Rocks of Kachh (Cutch)

Reviews

Geologie Afrikas. By Dr.E. Krenkel. Vol. iii, part i. pp. viii + 1003–1304. Berlin: Borntraeger, 1934. Price, RM. 28.

Correspondence

Correspondence

Reviews

The Geology of South-Western Uganda, with Special Reference to the Stanniferous Deposits. By H. A. Stheeman. pp. xvi + 144, with 94 photos, 102 figures, 6 sections, and 6 maps. The Hague, Martinus Nijhoff, 1932.

Correspondence

Kellaways Clay Fossils

Reviews

Useful Aspects of Geology. By S. J. Shand. 2nd edition, pp. x + 183, with 30 text-figures. London: Murby, 1934. Price 6s.

Les Ressources Minerales de la France d’outre-Mer. III: le zinc, le plomb, l’argent, le cuivre, l’or, les minerais radio-actifs, le mica, les pierres precieuses. IV: le phosphate. Paris: Société des Éditions Geographiques, Maritimes et Coloniales, 1935.

Announcements

Announcements

Front matter

GEO volume 72 issue 5 Front matter

Correspondence

Spessartite in the Cambrian Manganese Ore of Merionethshire

Reviews

Northern England. By T. Eastwood. pp. v + 76, with viii plates and 26 text-figures.

Studi paleontologici e litologici sulla Cirenaica e sulla Tripolitania orientale. By various Authors. Reale Accademia d’Italia; Viaggi di Studio ed Esplorazioni; No. 3: Missione scientifica della Reale Accademia d’ltalia a Cufra (1931, IX), Vol. III. Roma, 1934. 493 pp., 31 pls. Price L. 100.

Life-history of the Sudbury Nickel Irruptive. I. Petrogenesis. By W. H. Collins. Trans. Royal Soc. Canada. 1935, pp. 123–177.

Introduction aux Études Minières Coloniales. pp. viii + 349. Paris: Société d'Éditions Géographiques, Maritimes et Coloniales, 1934. Price 36 francs.

Front matter

GEO volume 72 issue 8 Front matter

Reviews

On the Dermal Bones of the Head in Labyrinthodont Stegocephalians and Primitive Reptilia, with special reference to Eotriassic Stegocephalians from East Greenland. By G. Säve-Söderbergh. Meddelelser om Grønland, Bd. 98, Nr. 3, pp. 1–211, pls. 1–15. Copenhagen, 1935. Price, Kr. 11.00.

Chromite Deposits of Newfoundland. By A. K. Snelgrove. pp. 26. Bulletin No. 1 of the Geological Section, Department of Natural Resources, Newfoundland. St. John’s, 1934.

Correspondence

“Creep”

Geological Magazine

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Volume 72 - July 1935

Reviews

Front matter

Original Articles

Reviews

Correspondence

Reviews

Correspondence

Reviews

Announcements

Front matter

Correspondence

Reviews

Front matter

Reviews

Correspondence