257 



Medicinal extracts defined, 147. 



Meteorological Observations, at Cassio- 

 biirv, 1876, 89 ; at Holly Bank, 

 Watford, 1877, 91 ; at Wauslord 

 House, Watford, 1878, 209 ; re- 

 duction of, 197. 



Meteorology, notes on, 250. 



Meyer quoted, 36. 



Meux and Co.'s brewery, boring at, 

 244. 



Micro -megascope described, 2.52. 



Microscopical slides presented, xx. 



MUk, poisoning by, 152. 



Miniram valley visited, Ivi. 



Minerals, physical characteristics of, 

 104. 



Miocene flora, 137. 



Miscellaneous Notes and Observations, 

 111, 156, 249. 



Mistletoe on hawthorn, xxv. 



Mites, new species of, figured, 149. 



Moggridge, M., on trees, Lx. 



Moor Park, field meeting in, xxLx ; 

 pollard oaks in, 8, 14 ; lime trees in, 

 XXX, 8 ; Cardiual's Oak in, xxx, 13 ; 

 rainfall at, in 1877, 99; in 1878, 

 225. 



Morris, Prof., on the geology of Hert- 

 ford, xxvi. 



Morris, Rev. F. 0., quoted, 19, 27, 143. 



Mountain ranges, 180. 



Miich Hadham, rainfall at, ia 1877, 

 99 ; in 1878, 225. 



Munden House, birds preserved at, 32. 



Mussels in the Gade, 126. 



Nature, remarks on, 49, 162. 

 Natural History, influence of its study, 



128 ; study of practical, 163. 

 Natural selection in rabbits, 112. 

 Nash Mills, rainfall at, in 1877, 99; 



in 1878, 225 ; Gade at, 115. 

 Nebular theory explained, 50. 

 Neptimists and Yulcanists, 173. 

 New Barnes, St. Albans, visited, xxiv. 

 Northchurch, Bulborne near, 114. 

 Notes and observations, miscellaneous, 



111, 156, 249. 

 Notes, for observations of injurious 



insects, 77 ; on economic entomo- 



log-y, 84 ; on bnds observed in 1878, 



143. 



Oak trees in Herts, 2. 



Oak Wood in Gorhambury, 13. 



Oaklands, Watford, rainfall at, in 1877. 



99 ; in 1878, 225. 

 Observations and notes, miscellaneous, 



111, 156, 249. 

 Observations, meteorological, at Cassio- 



bury, 1876, 89; at Holly Bank, 



Watford, 1877, 91 ; at Wansford 

 House, Watford, 1878, 2U9 ; re- 

 duction of, 197. 



Observations, phenological, in 1876, 

 37; in 1877, 101 ; in 1878, 229. 



Oceanic island floras, 131. 



Odsey, bee-orcliis near, xxv ; rainfall 

 at, in 1877, 99 ; in 1878, 225 ; 

 phenological observations at, in 1877, 

 101 ; in 1878, 229. 



Officers and Council for 1878, xv ; for 

 1879, xxxvii. 



Oi-dinary Meetings, reports of, 1877, 

 Lx-xii; 1878, xiv - xxxii ; 1879, 

 xxxvi-lii. 



Orin^in and distribution of the British 

 Flora, 129. 



Ormerod, Miss E. A. : Notes for Ob- 

 servations of Injurious Insects, xxii, 

 77 ; Notes on Economic Entomology, 

 xxii, 84. 



Otters in the Colne Valley, xxv. 



Ouzel, com'se of, 113. 



Oxhey cutting, section at, 250. 



PaliBozoic rocks imder the London 



Basin, 244, 246. 

 Palmer, R. : Fertilisation of Aiicuba 



Japonica, xxxii, 156. 

 Panshanger, remains of stag in, xxxii. 

 Panshanger Oak, 9. 

 Papers read in 1877, list of, xvi ; in 



1878, xxxviii. 

 Park Hill, rise of Bulborne near, 113; 



depression in the Chalk at, 115. 

 Partridge removing her eggs, lii, 29, 



35. 

 Pearls, manufacture of artificial, 119. 

 Peel, Eev. H. R. : Bees and Bee- 

 keeping, xliii, 183. 

 Perkins, Rev. C. M. : On British 



Butterfiies, xLx, 63 ; phenological 



observations by, 229. 

 Phenological observations in 1876, 37 ; 



in 1877, 101 ; in 1878, 229. 

 Physical characteristics of minerals, 104. 

 Physiology, study of, 162. 

 Plants, phenological observations of, in 



1876, 38; in 1877, 102; in 1878, 



230. 

 Pliocene flora, 138. 



Poisons not always poisons, xxxvi, 147. 

 Folyqoiiatiim mnltijforum foimd, xxi, 



158. 

 Presentation to the Honorary Secre- 

 tary, X. 

 President's Adckess, 1878, 49 ; 1879, 



157. 

 Prestwich, Prof., section at Tyler's 



Hill by, xxiii ; quoted, 243, 244. 

 Products" of Hertfordshire, 4 1 . 



