Prospecius of a new System of Beaconing. 443 
- ¥ shall close this long letter, by observing that on castiig my 
eye over the configurations of Juniter’s satellites for the month 
of January, I find the position of almost all of them to be erro- 
neous. lam, sir, 
Your obedient servant, 
ASTRONOMICUS. 
P.S.— In the preface to the Nautical Almanac it is stated 
that “ all the articles were computed by two separate persons, 
and examined by athird:” perhaps it may exercise the ingenuity 
and abilities of some of your readers, to determine the probali- 
Zity that three persons should commit precisely the same mis- 
take in any calculation; and that a repetition of similar errors 
should oeeur several times in a work of 144 pages! !!. 
LXXV. Prospecius of a new System of Beaconing. By His 
Majesty's Royal Letters Patent granted to RoBERT Dickin- 
son, Great Queen-Street, London. 
Tuere is something so new in this Prospectus, and the benefits 
to be expected from the adoption of the system it recommends 
are so many and so important, that we cannot too earnestly re- 
commend it to the attention and speedy adopticn of those who 
from their situation possess the means of giving efticacy to any 
plan calculated to benefit the interests of navigation and hu- 
manity. Induced by the statements in the Prospectus to ex- 
amine for ourselves the models of the patentee, we waited on the 
inventor, and bestowed on them a very careful inspection ; and 
we have no hesitation in stating that, in our opinion, the system 
is quite scientific, and so perfect as to leave little or nothing to 
be desired, but it’speedy and universal adoption by the con:mon 
consent and patronage of all the maritime powers.—Epit. 
PROSPECTUS. 
The design of this Prospectus is to propose a new heacon, of 
the following description and uses, with a view to beaconing the 
seas of the world. 
Ist. Every beacon on this construction will tell the longitude, 
latitude, soundings, bearings, and distance from land ; how to be 
approached, currents, &c. with every other particular which the 
most elaborate and correct survey can describe. 
2dty, Every beacon, and the particulars belonging thereto, 
will be as well known and as familiar to navigators of the re- 
motest climes, and of all nations, as to those of its own country. 
3dly. It presents the figure of an erect pillar (see the Plate), 
and can be placed in all fathomable depths of any reasonable size 
and elevation, say from 6 to 18 or 20 feet in height. 
4thly. 
