266 



INDEX. 



Britain, animals whicli have become 



extinct in, xi, 5. 

 British Association Boulder Committee, 



163. 

 British beetles, 25. 

 Broad Oak End Farm, middle glacial 



beds at, 105. 

 Brocket Hall, rainfall at, in 1879, 129 ; 



in 1880, 223. 

 Broxbourne visited, Ixi, Ixiv. 

 Bunting in Herts, 70. 

 Buntingford visited, Ixii ; boulder-clay 



at, 106. 

 Bush Wood, Bovingdon, circular camp 



near, Ixi. 

 Bushey Heath, rainfall at, in 1879, 129. 

 Bushey Station, rainfall at, in 1879, 



129 ; in 1880, 223. 

 Buzzard, rough-legged, in Herts, 239. 

 Bye meeting, 18S0, report of, xv. 



Calyx, homology of, 60. 



Cam basin, rainfall in, in 1879, 130 ; 

 in 1880, 224. 



Camden quoted, lix. 



Campbell, F. M. : General Observa- 

 tions on Spiders, xv, 37-48 ; Notes 

 on Aphides, Ivii-lviii. 



Camp's Hill, middle glacial beds at, 

 105. 



Carnivorous plants, xv. 



Carruthers, W., on evolution, 91. 



Cassiobury Park visited, Ixvii ; rainfall 

 at, in 1870-79, 156. 



Cercaria, 140. 



CImtospira at Hoddesdon, 168. 



Chalk near Ashridge, xxxvii ; at Hat- 

 field Park Kiln, xxxix; of the Dun- 

 stable Downs, Ixv. 



Chalk formation, 98. 



Chesham Grove visited, Ix. 



Cilia on tadpole of the frog, 264. 



Climate, influence of post- tertiary beds 

 on. 111. 



Ccelenterata, classification of, 212. 



Cole Green visited, xxxviii, Ixiii ; 

 middle glacial beds at, 105. 



Coleoptera, 25. 



Colne basin, rainfall in, in 1879, 130 ; 

 in 1880, 224. 



Conglomerate, Hertfordshire, xxxiii. 



Conochilus Volvox, 118. 



Conversazione at Hertford, x. 



Corolla, homology of, 63. 



CoTTAM, A. : Our British Beetles : 

 Notes on their Classification and 

 Collection, xiv, 25-36 ; Note on the 

 Pniwtion of the Stag-beetle, xvii, 

 83-84. 



Council elected 17th Feb. 1880, xviii : 

 15th Feb. i88i,xlv. 



Council Report for 1879, xviii; for 

 1880, xlvi. 



Cowroast, rainfall at, in 1879, 129 ; 

 in 1870-79, 156 ; in 1880, 223. 



Ckoft, R. B. : Work for the Society, 

 xiii ; Note on the Schwendenerian 

 Theory of Lichens, xlv, 166-167 ; 

 On the Occurrence of Red Snow in 

 Herts, Ivi, 170-172 ; On thepresence 

 of Cilia on the Tadpole of the Com- 

 mon Frog, Iviii, 264. 



Cuckoos fed by wagtails, 244. 



Cussans, J. E., quoted, xxxviii. 



D. 



Darwin, C, on evolution, 88, 89. 

 Darwin, Dr. E., on generation, 87, 88. 

 Datch worth, rainfall at, in 1879, 129 ; 



in 1880, 223. 

 Deep-sea Exploration, 173. 

 Deposits in the ocean, 186. 

 Depth of the ocean, 185. 

 Development, progressive, 96. 

 Dinocharis tetraetis, 119. 

 Bistoma hepaticum, 139 ; musculum, 



141. 

 Donations to the library in 1879, xxv ; 



in 1880, lii. 

 Double flowers, homology of, 65. 

 Dual-lichen hypothesis, 166. 

 Dunstable Downs, geology of, xxxvii, 



Ixv. 



E. 



East Barnet, rainfall at, in 1S79, 129 ; 



in 18S0, 223. 

 Echinodermata, classification of, 213. 

 Economic importance of post-tertiary 



deposits of Herts, 109. 

 Educational museums, 193 ; institu- 

 tions, 206. 

 Elsden, J. V. : The Post-Tertiary 



Deposits of Hertfordshire, xxviii, 



xxxii, 103-112. 

 Endogens, classification of, 208. 

 Epping Forest visited, Ixviii. 

 Ermine Street visited, xl, Ixiv. 

 Erratic blocks, recording of, 163. 

 Essendon visited, xxxix ; lower glacial 



beds at, 103. 

 Essendon Hill, post-glacial beds at, 



106. 

 Euchlanis triquetra, 119. 

 Euglena in red snow, 171. 

 Evans, Dr. J. : On superficial deposits 



of Herts, xxix ; A Few Words on 



Tertiary Man, xl, 145-150; on the 



Hertfordshire Bourne, Ix. 



