270 
INDEX. 
Heron in Herts, 215. 
Hertford, ordinary meetings at, 1883 , 
xiv ; 1884 , xv, xxxvi, xxxix, 
xlix ; 1885 , lx, lxv ; field meeting 
at, 1885 , lxv; chalk near, lxvi; 
Woolwich and Reading Beds near, 
lxvi ; London Clay near, lxvi ; 
Diatomacese of, 9 ; Codosiga botrytis 
in pond near, 98 ; Salpingoeca tuba 
in ditch near, 100 ; rainfall at, in 
1883 , 115; in 1884 , 249; pheno- 
logical observations at, in 1883 , 191; 
in 1884 , 228. 
Hertford Castle visited, lxvi. 
Hertford Heath, Salpingoeca fusiformis 
at, 99. 
Hertfordshire, land and fresh-water 
Mollusca recorded in, 10 ; investiga¬ 
tion of land Mollusca in, 17 ; land 
and fresh-water Mollusca observed 
in, 29 ; boulders and boulder-clay 
in, 33; microscopic structure of 
boulders from, 47 ; tabular view of 
igneous boulders of, 55 ; Lepidoptera 
of, 58, 261 ; birds observed in, in 
1883 , 82 j in 1884 , 207; insects 
observed in, in 1883 , 91; in 1884 , 
233; Protozoa of, 95 ; flowering 
plants observed in, in 1883 , 101 ; 
rainfall in, in 1883 , 112 ; in 1884 , 
247; list of works on geology of, 
1874 - 83 ,165 ; well-sections in, 173 ; 
phenological phenomena observed 
in, in 1883 , 191; in 1884 , 227; 
diatoms of, 206 ; earthquake of 22 nd 
April, 1884 , felt in, 246. 
Hertfordshire conglomerate, xlii; 
fungi, xlviii; lichens, lxiii, lxxii; 
mosses,xlviii, lxiii, lxxii; Hepaticse, 
xlviii, lxiv, lxxii. 
High Down, Hitchin, rainfall at, in 
1883 , 115 ; in 1884 , 249. 
High Wych, Sawbridgeworth, pheno¬ 
logical observations at, in 1883 , 191; 
in 1884 , 228. 
Hitchin, ordinary meeting at, 1884 , 
xlix ; boulders at, 42 ; microscopic 
structure of doleritic boulders from, 
49 ; of gneissic, 54 ; rainfall at, in 
1883 , 115; in 1884 , 249; pheno¬ 
logical observations at, in 1883 , 191 ; 
in 1884 , 228; Lepidoptera of, 261. 
Hitchin Natural History Club, pheno¬ 
logical observations by, in 1883 , 
191 ; in 1884 , 228. 
Hoddesdon, rainfall at, in 1883 , 115. 
Holmes, E. M., list of mosses found 
at Ashridge by, lxiii; list of lichens 
and mosses found at Gorhambury 
by, lxxii. 
Hoopoe in Herts, 82. 
Hopkinson, J. : Remarks on the 
Land Mollusca, with reference to 
their investigation in Hertfordshire, 
xiv, 17-28 ; List of Land and Fresh¬ 
water Mollusca observed in Hertford¬ 
shire, xiv, 29-32 ; plants observed in 
Herts by, 101 ; List of Works on 
the Geology of Hertfordshire, 
1874 - 83 , lx, 165-172 ; Meteoro¬ 
logical Observations taken at Wans- 
ford House, Watford, during the 
year j 883 , lxi, 181-190 ; Report on 
Phenological Phenomena observed 
in Hertfordshire during the year 
1883 , lxi, 191-196; Meteorological 
Observations taken at Wansford 
House, Watford, during the year 
1884 , lxi, 219-226; Report on 
Phenological Phenomena observed in 
Hertfordshire during the year 1884 , 
lxi, 227-232. 
Hopkinson, Mrs. J., phenological ob¬ 
servations by, in 1883 , 191 ; in 1884 , 
228. 
Humbert, S., notice of, xvi. 
Humidity at Throcking, in 1883 , 104 ; 
in 1884 , 240; at Watford, in 1883 , 
184 ; in 1884 , 220. 
Hydrochelidon nigra in Herts, 209. 
I. 
Igneous rocks, boulders of, in North 
Herts, 46. 
Income and expenditure in 1883 , xxi; 
in 1884 , lvii. 
Insects observed in Herts in 1883 , 91 ; 
in 1884 , 233. 
Instinct, 119; definition of, 121 ; re¬ 
lation of evolution to, 126. 
Instincts, of neuter insects, 127; in¬ 
jurious to the individual, 132. 
Invertebrata of the Chalk, 149. 
Ivel district, rainfall in, in 1883 , 116 ; 
in 1884 , 250. 
Ivinghoe, whirlwind at, in 1834 , 236. 
J. 
James, J. H. : Curious Habit of the 
Wagtail, lxii, 237-238. 
Jeffreys, Dr. J. Gwyn : List of Land 
and Fresh-water Mollusca observed 
in Hertfordshire, xiv, 29-32; notice 
of, 158. 
Jones, Prof. T. Rupert: The Origin 
and Composition of Chalk and Flint, 
with special reference to their 
Foraminifera and other Minute 
Organisms, lii, 143-156. 
