The Quarterly journal of the Geological Society of London . ructures weredissolved and only casts now remained, which without carefulscrutiny might be passed over as those of foraminifera. He hadseen the Authors sections, and could corroborate their Authors had also done good service in describing the variousphases of the fossilization of radiolaria in the calcareo-siliceousbeds of Barbados and comparing them with those of the Chalk ofthis country. Prof. T. Rupert Jones stated that, in the Trans. HertfordshireNat. Hist. Soc. vol. iii. (1885) p. 152, he had referred to the dis-c
The Quarterly journal of the Geological Society of London . ructures weredissolved and only casts now remained, which without carefulscrutiny might be passed over as those of foraminifera. He hadseen the Authors sections, and could corroborate their Authors had also done good service in describing the variousphases of the fossilization of radiolaria in the calcareo-siliceousbeds of Barbados and comparing them with those of the Chalk ofthis country. Prof. T. Rupert Jones stated that, in the Trans. HertfordshireNat. Hist. Soc. vol. iii. (1885) p. 152, he had referred to the dis-covery of PolycystincB in the Chalk,—namely, Astromma, Haliomma,Podocyrtis, and some of the allied Dictyochidce, by Dr. Wallich, in1883. Some were found in solid flint, and some in flint-meal fromhollow flints, from Surrey and elsewhere. Mr. W. Hill regretted that the communication of Prof. E. Jonesto the Herts. Nat. Hist. Soc. should have been overlooked. Hethanked the Society for their reception of the paper. Quart. Journ. Geol. Soc. Vol. LI. PI. RADIOLARIA FROM THE MELBOURN ROCK. Vol. 51.] RADIOLARIAN ROCKS IN LOWER CULM MEASURES. 609 43. On a Well-markeb- Horizon of Radiolarian Rocks in theLower Culm Measures of Devon, Cornwall, and WestSomerset. By George Jennings Hinde, , , andHoward Fox, Esq., (Read June 5th, 1895.) [Plates ] Contents. PageI. Introduction 609 II. Literature relating to the Radiolarian (Oodden Hill) Beds . 611 III. Distribution of the Radiolarian Beds 615 (a) Barnstaple District, N. Devon. (b) Dulverton, W. Somerset. (c) Ashbrittle, W. Somerset. (d) Holcombe Rogus, Canonsleigh, and Westleigh, Devon. (e) Boscastle District, Cornwall.(/) Launceston District, Cornwall.(ff) Tavistock District, Devon. (h) Ramshorn Down, near Bovey Tracey, Devon. (i) Chudleigh District, Devon. (k) Bishopsteignton, near Teignmouth, Devon. IV. Mode of Occurrence of the Radiolarian Rocks 627 V. Chemical Composition of the Radi
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