244 CLASSIFIED SUBJECT-INDEX. 



IV. GEOLOGY. 



General. 



The Study of Geology : J. L. Lobley, Ila, 171. 



List of Works on the Geology of Herts : W. Whitaker, la, 78. 



, 1874-83 : .J. Hopkinson, III, 165. 



Hertfordshire Well-sections: W. Whitaker, III, 173 ; VI, 53. 



Geological and other Work in Hertfordshire : W. Wliitaker, X, 105. 



Geological Photography in Hertfordshire : J. Hopkinson, VI, 49. 



Physical Structure of the London Basin : Prof. J. Morris, la, 89. 

 Silurian. 



Recent Discovery of Silurian Eocks in Herts : J. Hopkinson, II«, 241. 

 Carboniferous. 



Coal : its Nature, Origin, Position, and Extent : Prof. T. R. Jones, VII, 89. 

 Cretaceous. 



Cretaceous Rocks of England : J. L. Lobley, la, 1. 



Origin and Composition of Chalk and Flint: Prof. T. R. Jones, III, 143. 



Notes on the Chalk Rock : Dr. J. Morison, V, 199. 



The CoproHte Beds at Hinxworth : R. Clutterbuck, la, 238. 

 Tertiary. 



The Eocenes of England and their Extension in Herts : J. L. Lobley, la, 161. 

 Post-Tertiary. 



Post-Tertiary Deposits of Hertfordshire : J. V. Elsden, I, 103. 



Agricultural Geology of Hertfordshire: J. V. Elsden, I, 145. 



The Gravels, Sands, Clays, and Loams of West Herts: T. E. Lones, X, 158. 



Ice and its Work : Dr. J. Morison, VII, 147. 



On the Importance of Recording Erratic Blocks: H. G. Fordham, I, 163. 



Boulders and Boulder-clay in North Hertfordshire: H. G. Fordham, III, 33. 



Microscopic Structure of Boulders found in North Herts : J. V. Elsden, III, 47. 



Boulders in the Neighbourhood of Buntingford: R. P. Greg, la, 172. 



On a Boulder at the Royston Institute : H. G. Fordham, Ila, 249. 



The Palaeolithic Deposits at Hitchin: C. Reid, X, 14. 



On some Changes along our Coasts : W. Whitaker, X, xxxvii. 



V. PHENOLOGY. 



Methods. 



Observation of Periodical Natural Phenomena : J. Hopkinson, la, 33. 



of the Time of Flowering of Plants : Rev. W. M. Hind, la, 43. 



of Insects in connection with Seasonal Phenomena : A. Cottam, la, 50. 



of Birds: J. E. Harting, la, 52. 



A Simple Method of taking Phenological Observations : E. Mawley, VI, 117. 

 Results. 



Reports on Phenological Observations in Herts in 1876 to 1880 : J. Hopkinson, 

 Ila, 37, 101, 229; I, 133, 257. 



Reports on Phenological Phenomena observed in Herts in 1881 to 1890 : 

 J. Hopkinson, II, 71, 181 ; III, 191, 227 ; IV, 93, 17(5 ; V, 177 ; VI, 114. 



Reports on Phenological Phenomena observed in Herts in 1891 to 1899 : 

 E. Mawley, VII, 85, 182; VIII, 27, 193; IX, 97, 229; X, 61, 129, 173. 



Naturalist's Calendar for North Herts : H. G. Fordham, IV, 193. 



for South- West Herts: J. Hopkinson, V, 129. 



for Mid-Herts : J. J. Willis, VII, 76. 



VI. BIOLOGY. 



General. 



Study of Life -histories : Prof. L. C. Miall, X, xxi. 



Evolution: Dr. J. Gwyn Jeffreys, I, 85. 



Instinct: F. M. Campbell, III, 119. 



Deep-sea Exploration : Dr. J. Gwyn Jeffreys, I, 173. 



Importance of Minute Things of Life : Prof. T. Rupert Jones, II, 164. 



Rambles by Forest, Field, and Flood : J. Saimders, IX, li. 



Poisons not always Poisons : Prof. J. Attfield, Ilrt, 147. 



Disease in Nature : Dr. A. T. Brett, Ila, 163. 



