INDEX 
A. 
Aciptilia galactodactyla new to Herts, 
160. 
Additions to the Library in 1902 , xiii; 
in 1903 , xxxi; in 1904 , lii. 
Address, Anniversary, 1903 , 1 ; 1904 , 
77; 1905 , 145. 
Agrotis aquilina new to Herts, 110 . 
Aikin’s map of Herts, 1790 , 169 ; 
1795 , 1796 , 174; i 8 co, 175; 1803 , 
177; 1809 , 182. 
Alanda arboria in Herts, 30. 
Albinism in cream-coloured mole and 
common shrew, 135. 
Aldbury, Tring, visited, xvii. 
Aldenham, rainfall at, in 1903 , 100 ; 
in 1904 , 220 . 
Aldenham Abbey, Watford, visited, 
lxxi; its history, lxxi. 
Anniversary Meeting, 1903 , ix ; 1904 , 
xxvi; 1905 , xlvii; Address, 1903 , 
L ; 1904 , 77 ; 1905 , 145. 
Anticlea cucullata (sinuata ) new to 
Herts, 159. 
Aphodins porcus new to Herts, 156. 
Apion annuhpes , A. Jilirostre , and 
A. rujirostre new to Herts, 156. 
Apsley Mills, rainfall at, in 1903 , 100 ; 
in 1904 , 220 
Ardea purpurea new to Herts, 125. 
Ashdown, C., on the history of 
Gorhambury, lxix. 
Asthena sylvata new to Herts, 110. 
Athene noctua at AVatford, 34. 
Autumn of 1902 , 47 ; of 1903 , 95, 118 ; 
of 1904 , 211, 243. 
B. 
Bacon, Francis, and his work, 79. 
Balance-sheet for 1902 , xii; for 1903 , 
xxx; for 1904 , li. -3* 
Baldock, rainfall at, in 1903 , 100 ; in 
1904 , 220 . 
Barnet, rainfall at, in 1903 , 102 ; in 
1904 , 220 . 
Barnet, New, rainfall at, in 1903 , 100 ; 
in 1904 , 220 ; climatological observa- 
. tions at, in 1903 , 123 ; in 1904 , 215. 
VOL. xii.—PART IX. 
! Barraud, A. : Notes on Lepidoptera 
observed in Hertfordshire during the 
year 1902 , xv, 21 ; on Lepidoptera 
at Bushev Heath ill 1903 , 115; in 
1904 , 163. 
Bayfordbury, Hertford, rainfall at, in 
1903 , 100 ; in 1904 , 220 ; com¬ 
parative rate of growth of peduncu¬ 
lated and sessile oak at, 245. 
Bedfordshire, mean rainfall in, in 1903 , 
108 ; in 1904 , 225. 
Beds in the Gade valley, 253. 
Beech Bottom, St. Albans, visited, lxix. 
Bell’s map of Herts, 1833 , 198; 1836 , 
204. 
Bennington, rainfall at, in 1903 , 100 ; 
in 1904 , 220 ; meteorological ob¬ 
servations at, in 1903 , 120 : in 1904 , 
212 . 
Berkhamsted, plienological observations 
at, in 1902 , 44; in 1903 , 92 ; in 
1904 240 ; rainfall at, in 1903 , 100 ; 
in 1904 , 220 ; meteorological ob¬ 
servations at, in 1903 , 121 ; in 1904 . 
213. 
Berkhamsted Common, Neolithic celt 
found near, 157. 
Bibliographical requirements, con¬ 
formity of publications of scientific 
societies with, lvii. 
Bickerton, W.: Notes on Birds ob¬ 
served in Hertfordshire during the 
year 1902 , ix, 33-40; . . . during 
the year 1903 , xxxvi, 125-134; 
. . . during the year 1904 , lv, 
226-236. 
Bickham’s map of Herts, 1796 , 174. 
Birds observed in Herts in 1902 , 33 
38, 45; in 1903 , 93, 125, 133; in 
1904 , 226, 235, 241. 
Black-necked grebe neAV to Herts, 125. 
Blackstone, John, and his work, 87. 
Bombyces, their habits, 55. 
Botanic illustration, history of, 145. 
Botanical survey of counties, xxxvii. 
Boulders in northern drift clays of 
Herts, 141. 
Boundary Commissioners’ map of Herts, 
1832 , 195, 196. 
Bourne, Hertfordshire, visited, xii. 
18 
