REV 
dispose of an interest of this kind generally 
sell it by public auction, in which mode it 
very seldom happens that more than two- 
thirds of the true calculated value is ob- 
tained. 
Reversion of series, in algebra, a kind 
of reversed operation of an infinite series. 
Reversion, in law, is that part of an 
estate, or interest, which remains to the 
original grantor, or his heirs, after the par- 
ticular or less estate which he has granted 
shall expire. Thus, if A having the fee, 
grant an estate for life, or in tail, to B, A 
still has an estate in fee, in reversion, ex- 
pectant upon the failure or determination 
of the particular estate of B. It differs 
from a remainder, in being the remnant 
of the estate in the hands of the or iginal 
grantor ; but a remainder is something 
granted out by the grantor. See Remain- 
der. 
REVIEW. In the military acceptation 
of the term, an inspection of the' appear- 
ance, and regular disposition of a body of 
troops, assembled for that purpose. At all 
reviews, the officers should be properly 
armed, ready in their exercise, salute well, 
in good time, and with a good air j their 
uniform genteel, &c. The men should be 
clean and well dressed ; their accoutre- 
ments well put on ; very well sized in the 
ranks , the serjeants expert in their duty, 
drummers perfect in their beatings, and the 
filers play correct. The manual exercise 
must be performed in good time, and with 
life ; and the men carry their arras well ; 
march, wheel, and form with exactness. 
All manoeuvres must be performed with 
the utmost regularity, both in quick and 
slow time. The intention of a review is, 
to know the condition of the troops, to see 
that they are complete, and perform their 
exercise and evolutions well. 
Review, bill of, in chancery, is where 
a cause has been heard, and the decree 
signed and enrolled ; and some error in law 
appears upon the decree, or new matter is 
discovered in time after the decree made, 
a bill of review is then had. 
REVISE. See Printing. 
REVIVOR, bill of, is where a bill has 
been exhibited in Chancery against one 
who answers, and before the cause is heard, 
or if heard, before the decree enrolled, 
either party dies. The cause is then said 
to die also, and a bill of revivor must be 
brought, that the former proceedings may 
stand revived, and the cause be finally de- 
termined. 
RHE 
REVOCATION, in law, a destroying or 
making void a deed or will which existed 
before the act of revocation. 
Some things may be revoked, of course, 
though they are made, irrevocable by ex- 
press words ; as a letter of attorney, a sub- 
mission to an award, and a testament, or 
last will. 
By the statute of frauds, 29 Charles II. 
c. 3. no devise of lands shall be revocable, 
otherwise than by some other will, or codi- 
cil, in writing, or other writing declaring 
the same, signed in the presence of three 
witnesses. But still such a devise may be 
revoked by destroying the will, or by any 
other revocation by act of law; such as 
granting away the estate to another, by 
deed. 
REVOLUTION, in astronomy, is the 
period of a planet or comet, &c. or its 
course from any point of its orbit till it 
return to the same again. Planets have a 
twofold revolution : one about their axis, 
called their diurnal rotation, which consti- 
tutes their day ; the other, about the Sun, 
called their annual revolution, constituting 
tlieir year. 
Revolution, in geometry, the motion 
of rotation of a line about a fixed point 
or centre, or of any figure about a fixed 
axis, or upon any line or surface. Thus the 
revolution of a given line about a fixed cen- 
tre, generates a circle ; and that of a right- 
angled triangle about one side, as an axis 
generates a cone ; and that of a semicircle 
about its diameter generates a sphere or 
globe. 
RHABDOLOGY, in arithmetic, the 
doctrine of Neper’s rods. See Neper. 
RHAMNUS, in botany, buck thorn, a 
genus of the Pentandria Monogynia class 
and order. Natural order of Dnmosa;. 
Rhamni, Jussieu. Essential character : ca- 
lyx tubular; corolla scales defending the 
stamens inserted into the calyx; berry. 
There are tbrty-two species. 
RHAPIS, in botany, a genns of the 
Appendix Palmae. Natural order of Palms. 
Essential character : calyx trifid ; corolla 
trifid ; stamens six ; pistil one. There are 
two species, viz, R. flabelliformis, creeping 
rooted rhapis, or ground rotan ; and R. 
arundinacea, simple-leaved rhapis. 
RHEEDIA, in botany, so named in me- 
mory of Henry Rbeede Van Draakenstein, 
a genus of the Polyandria Monogynia class 
and order. Natural order of Guttiferoe, 
Jussieu. Essential character : calyx none; 
corolla four-petalled ; berry three-sided.- 
