250 
INDEX. 
Migrants, arrival and departure of, in 
1900, 51 . 
Migration of birds, xx, xxi. 
Missel-thrush plentiful in 1900, 47 . 
Moll’s map of Herts, 1724, 186 , 187 ; 
1739, 189 ; 1753, 197 . 
Mollusca, list of, found in alluvium at 
Watford, xli. 
Monmouth oak at Toddington, xliv. 
Moor Park, Rickmans worth, rainfall 
at, in 1900, 36 ; in 1901, 158 ; in 
1902, 230 . 
Morden’s map of Herts, 1700 (c), 180 , 
181 ; 1704, 1708, 182 . 
Motacilla lugubris, cuckoo’s eggs in 
nest of, 47 ; M. melanope , early 
appearance of, in 1900, 47 . 
Moths observed in Herts in 1900, 44 ; 
in 1901, 167. 
Much Hadham, see Hadham. 
Muscicapa atricapilla at Munden, 48 . 
N. 
Nature, systematic local study of, xxxix. 
Nettleden visited, xxv. 
Nineteenth century, progress during, 
105 . 
Noctuae of Cheshunt, 79 ; of Bushey 
Heath, 170 . 
Nocturni of Cheshunt, 76 . 
Norden’s map of Herts, 1598, 13 ; 
1637, 20 ; 1723, 186 . 
Northaw, rainfall at, in 1900, 36 ; in 
1901, 158 ; in 1902, 230 . 
Northchurch, rainfall at, in 1900, 36 . 
Northwood, rainfall at, in 1902, 232 . 
Nyroca Baeri at Tring, 142 . 
O. 
Oaks, historic, of Beds, xliv. 
Observations, phenological, in Herts in 
1900, 53 ; in 1901, 135 ; meteoro¬ 
logical, in 1900, 65 ; in 1901, 145 ; 
in 1902, 213 ; in 1887-1898, 121 . 
October, 1901, gale of, 243 . 
Odsey, Ash well, rainfall at, in 1900, 
36 ; in 1901, 158 ; in 1902, 230 ; 
phenological observations at, in 1900, 
54 ; in 1901, 138 . 
Oliver’s map of Herts, 1695, 178 . 
Ordinary Meetings, session 1900-1, 
ix-x, xvii-xxii ; 1901-2, xxvii-xxix, 
xxxv-xli; 1902-3, xliii-xliv. 
Ordnance Survey commenced in 1784, 9 . 
Ormerod, Miss E. A., obituary notice 
of, xxix. 
Orobena extimalis new to Herts, 166 . 
Orthosia suspect a at Bushey Heath, 44 . 
Osprey at the Tring Reservoirs, 50 . 
Ostracoda from the Chara-marl of 
Hitchin, 60 . 
Ouse basin, rainfall in, in 1900, 39 ; 
in 1901, 160 ; in 1902, 232 . 
Owen’s map of Herts, 1720, 185 ; 1724, 
187; 1731,1736,1759,198; 1764, 
201 . 
Owl, long-eared and short-eared, at 
Stevenage, 49 . 
Oxhey Chapel and Woods visited, xli. 
P. 
Palaeolithic deposits at Hitchin, 63 . 
Palaeozoic rocks at Turnford and Ware, 
the direction and angle of their dip, 89 . 
Pandion haliaetus at the Tring Reser¬ 
voirs, 50 . 
Papers, list of, read in 1900, xii; in 
1901, xxx. 
Pendley Manor, Tring, rainfall at, in 
1900,36; in 1901, 158 ; in 1902, 230 . 
Phalacrocorax carbo at the Tring Reser¬ 
voirs, 50 . 
Phenological phenomena observed in 
Herts in 1900, 53 ; in 1901, 135 . 
Photographs, geological, xx, xxi ; an¬ 
thropological, xx, xxi. 
Phycitidae of Bushey Heath, 172 . 
Plants, dates of flowering in 1900, 54 ; 
in 1901, 138 ; of Hitchin lake-bed, 
64 . 
Plover, ringed, at the Tring Reservoirs, 
50 . 
Plusia moneta still in Herts, 44 . 
Pochard, Baer’s, at Tring, 142 . 
‘ Political Magazine,’ map of Herts in, 
1788, 212. 
Preston, Hitchin, rainfall at, in 1900, 
36 ; in 1901, 158 ; in 1902, 230 . 
Progress during the nineteenth century, 
105 . 
Pseudo-bombyces of Cheshunt, 78 . 
Pterophora of Cheshunt, 86. 
Pyralides of Cheshunt, 80 ; of St. 
Alhans, 168 ; of Bushey Heath, 171 . 
Q. 
Queen Catherine’s oak in Ampthill 
Park, xliv. 
R. 
Rainfall in Herts in 1900, 33 ; in 1901, 
155 ; in 1902, 227 ; mean, 1840-99, 
132 . 
Eallus aquaticus at Hunton Bridge, 50 . 
Raynor, Rev. G. H., list of Lepidoptera 
of Weston by, 170 . 
Recent storms and floods in Herts, 239 . 
