HIP 
The mode of computing high- water is by 
having the moon’s age given, of which take 
i, and adding it to the time of high-water 
on the day of full or change, and the sum is 
nearly equal to the time of high-water. 
Thus, for the present day, the 29th of May, 
it was new moon, or change, on the 25th, 
of course the moon is four days old; 
and on the 25th it was high-water at about 
two o’clock; therefore 4 x f-j-2=:5 h 12 m , 
or to about twelve minutes after five. 
HILLIA, in botany, so named in honour 
of Sir John Hill, M. D., author of many 
works in botany, a genus of the Hexandria 
Monogynia class and order. Natural order 
of Contorts. Rubiacese, Jussieu. Essen- 
tial character : calyx double, lower six- 
leaved ; corolla very long, contorted ; cap- 
sule two-celled, two-valved, crowned ; seeds 
downy. There are two species, viz. H. lon- 
giflora, and H. tetrandria ; both natives of 
Jamaica. 
HIN, a Hebrew measure of capacity for 
tilings liquid, containing the sixth part of 
an epha, or one gallon two pints, English 
measure. 
HIND, a female stag in the third year of 
its age. See Cervus. 
HINGES, the joints on which gates, 
doors, lids, folds of tables, &c. hang and 
turn in opening, shutting, or folding. They 
are of different denominations, as butts, 
used by the joiners for hanging table-leaves, 
&c. ; casement, for hanging casements upon 
dove-tails ; and esses, for light doors and 
lockers; garnet-cross, for hanging large 
doors or heavy scuttles ill ships ; port, for 
hanging ships’ ports ; scuttle, particularly 
used for scuttles. Besides these, there are 
many others of different forms and uses, dis- 
tinguished by different names. 
HIPS, in building, those pieces of timber 
placed at the corner of a roof. 
HIP roof, among carpenters, called also 
_ Italian roof, is a roof which has neither ga- 
ble-head, shread-head, nor jerk en-head (by 
which is meant such heads as are both ga- 
ble and hip at the same end) : for it is a ga- 
ble, or upright, as high as the collar-beam, 
and then there are two short hips, which 
shut up with their tops to the tops of a pair 
of rafters, which country carpenters call 
singlars. A hip-roof has rafters as long, and 
with the angles of the foot, &c. at the ends 
of buildings, as it has at the sides ; and the 
feet of the rafters, at the. ends of such build- 
ings as have hip-roofs, stand on the same 
plane, viz. parallel with the horizon, and at 
the same height from the foundation, with 
rafters on the sides of the roof. 
HIP 
HIPPIA,'in botany, a genus of the Syn* 
genesia Polygamia Necessaria class and or- 
der. Natural order of Composita; Discoi- 
dese. Corymbiferas, Jussieu. Essential 
character : calyx hemispherical, subimbri- 
cate, corollets of the ray ten, obsolete, sub- 
trifid ; seeds with very broad margins, 
naked; down none; receptacle naked. 
There are three species. 
HIPPOBOSCA, in natural history, a ge- 
nus of insects of the order Diptera. Mouth 
with a short, cylindrical, straight, two- 
valved sucker ; the valves are equal ; an- 
tennae filiform ; feet armed with numerous 
claws ; body flat and hard. There are five 
species, of which the most familiar is H. 
equina, or horse-fly: head brown; thorax 
browh, varied with pale colour; wings 
Crossing each other, hyaline with a brown 
spot near the outer margin ; legs annulate 
with yellow and brown. This insect is ex- 
ceedingly troublesome to horses; it hides 
itself under the hairs, and fixes to tire skin 
by means of their crooked nails. It varies 
in size, in different districts, but is largest 
in the southern and warm climates. The 
skin of the insect is of a strong and coria- 
ceous nature ; hence it may be pressed to 
a considerable degree, without being appa- 
rently injured. The female of this' insect 
deposits a single egg at distant intervals • 
but as the egg undergoes no further altera- 
tion of form, it has been regarded rather as 
a pupa than an egg ; it continues perfectly 
inert, but changes colour ; and, if opened 
after a certain period, it exhibits the fly in 
its nnadvanced state, and of a white colour. 
It not unfrequently lies during the whole 
Winter in this state, the fly emerging in the 
following summer. H. avicularia, is ob- 
served on the bodies of various birds, which 
it infests. H. hirundinis is, as its name im- 
ports, to be found in the nests and on the 
bodies ot swallows, swifts, and martins. 
H. ovina, is without wings ; it is known by 
the name of the sheep-tick, and is found im- 
bedded in the wool of these animals ; this 
is so tenacious of life, that it has been found 
in wool that has been a long time packed 
up in fleeces. 
HIPPOCRATEA, in botany, so named 
in memory ofHippocrates, the famous Greek 
physician ; a genus of the Triandria Mono- 
gynia class and order. Natural order of 
Acera, Jussieu. Essential character: calyx 
five-parted ; petals five ; capsule three, ob- 
cordate or elliptic. There are two species, 
viz. H. volubilis, and H. comosa. 
HIPPOCREPIS, a genus of the Diadel- 
phia Decandria class and order. Natural 
