INDEX.
1645
Page
Gates or entrances to
cities -
69
-- of Augustus
91
-, Circeium
-■ of the Lions at
88
71
-of canals -
Gauges for steam-
1102
engines
1254
——, water and tu-
bular -
1255
Gaunus, Mount
148
Gear, bevelled -
942
Geometry - 733. 835
George’s, St., Chapel,
Windsor
1630
Gephyrasans - 66. 81
Giallo Antico mar-
,
ble -
703
Gin for lifting - 957. 959
Girders, strength of -
1312
Girgenti, town of
63
Glass, its manufacture- ., machine for
731
polishing
975
Globe -
701
Globular projection -
747
Gneiss system -
633
-, its composition
654
Gnomonic, or central
projection
746
Gold
650
Goldsmith, arch of -
96
Gortyna, city ofGothic windows, their
51
proportions -Goubert’s apparatus
1608
for raising shipsGovernor or centri-
1056
fugal power -
1262
Gradients on railways
1567
Graham’s dead beat -
983
Grandi, Guido -
206
Granite, Aberdeen -
634
-, graphite 383.
. 634
-, porphyritic 348,
. 634
Gravatt’s level -
797
Graving docks -Gravity, specific, of
294
bodies, tables of
111 6
-, centre of
921
1120
■ , force of -
920
-, metals
1117
-, woods
1119
-of a circle
921
■-of a cone
921
—— of a paraboloid -
921
-of a sphere
921
—— of a segment
921
-of a sector
921
■-of a trapezium -
921
— of a triangle
921
40
Greenstone
634
Grilliage of timber -
221
Page
Groins, construction
of 1525
Groundwork, value of 896Gudgeons - 948, 949
Gunter’s chain 846, 847Gymnasium - - 120
Hadrian, circus of - 119
Halley’s diving-bell - 1051Hammers for for-ging - 1042
Harbours, see Ports .Harmonical propor-tion - 766
Harry Grace de Dieu 814Heat, radiation of - 1223
-, conduit pipes - 127
Hedgehog for rivers - 1059Heights - 736
Helepolis - - .47
Heliogabal us, circus of 119Hellespont, bridge
over - - ~ 66
Henry VII.’s Chapel,Westminster -
Heptagon - - 879
Hepteres - - 137
Hexaedron - 755. 889
Hexagon - 887
Hexastyle temples - 1582—, proportions - -Hiero, palace of - 57
•-, several - - 148
Hippodrome of Con-stantine 95
Hoisting tackle - 1012
— for the Menai
Bridge - - 1027
Holly, wood of - 101. 1286Hooke’s universaljoint - - - 950
Hooke, Dr., on the
Catenarian - - 417
Horizontal line - 735
Hornbeam wood 101. 1286Horse, power of - 1092-, observations on 1093
- — , daily work of - 1017
Plot-blast iron - 683
Hounslow Pleath,
base line on - - 853
Plumber dock wall - 1526
- basin piers - 1529
Hydraulics - - 34
Hydraulic traversing
frames - - - 1281
--docks - - 294
-lime - - 721
Hydrogen - - 644
Hydromctry - - £07
Hydrostatic balance - 207Hydruntum - . 148
IPygrometric ma-chine - - 990. 999
Hymettus, marble of 99Hypersthene rock - 634
Hypocaustum - 121. 131
Icosaedron - 779. 889Impact, or shock ofwater - - - 1197
Impenetrability - 915Impression, centre of 1115Inclined plane - 296. 924
-planes on canals 1554
Inertia - 916
Invertebrata in geo-logy - - - 621
Iodine - 647
Ionic temples, theirproportions - - 1J87
Iron - 620, 621. 678
-, its cohesion - 693
-, alloys of- - 681
-, assay of - - 679
-, corrugated - 693
-, cylinders - 307
■ -, cylindrical co-
lumns - - 691
-, Duleau’s expe-riments on - 498
-, forging - - 685
-, furnaces - 682
-, galvanised - 694
- hand used by
Archimedes - 58
——, moulding - 684
—, native - - 670
-, piles 313. 315. 549
-, planing - - 1048
—, plate bending - 1028-power of sus-pension - 507
-, proving ma-chine - - 507
puddling - 685
— ■, revolving
shafts - - 693
-, rolling, for-ging, &c. - 685
-, strength of 690. 693
■ -, sulphate of - 680
-, sulphuret of - 680
-, swivel bridges 328
-, teeth .of wheels 946
-, tenacity of - 514
-, tension of - 693
-, valuation of
work done in 910
-, weight, tables of 690
-, wrought - 685
Ischia - 139
-, limestone of - 95
lbddomum - . 1423
Isosceles triangles - 768