has been rarely looked into by any
but scientific men.

1. A portable observatory. 2. An astronomical clock, made by Mr
Shelton. 3. An assistant clock, made by Mr Monk. 4. A transit
instrument, made by Mr Bird. 5. An astronomical quadrant, by the same
excellent artist. 6. A reflecting telescope, of two feet focal length,
by ditto. 7. An achromatic refracting telescope, of three and a half
feet, and triple object glass, made by Mr Dollond. 8. A Hadley's
sextant, by ditto. 9. Another, by Mr Ramsden. 10. An azimuth compass,
by Mr Adams. 11. A pair of globes, by ditto. 12. A dipping needle, by
Mr Nairne. I3. A marine barometer, by ditto. 14. A wind gage, invented
by Dr Lind of Edinburgh, and made by Mr Nairne. 15. Two portable
barometers, made by Mr Burton. 16. Six thermometers, by ditto. 17. A
theodolite, with a level, and a Gunter's chain, by ditto. 18. An
apparatus for trying the heat of the sea-water at different depths.
19. Two time-keepers, one made by Mr Larcum Kendal, on Mr Harrison's
principles, and the other by Mr John Arnold.

Mr Wales has particularly described some of these instruments, and the
mode of using them. He has, besides, given a very interesting, though
short history of the application of astronomical instruments to
navigation, a summary of which, with some additional remarks, could
scarcely fail to be valued by any reader concerned for the promotion
of useful science. This, accordingly, it is purposed to insert
whenever a proper opportunity occurs. It might seem rather a hindrance
in this place.--E.

[17] The opinion stated in the memoir of Cook, in the Biographia
Britannica, as to his appearance in the character of an author,
perfectly concurs with what the writer has elsewhere said on the
subject; and it may deserve a place here, as a commendatory testimony,
which the modesty of Cook, it is probable, would scarcely have allowed
himself to expect. It is inserted, besides, with greater propriety, as
specifying one of the friends alluded to, of whom, in the capacity of
editor of Cook's third voyage, we shall have another opportunity of
speaking with the esteem due to his literary character, and his most
praise-worthy exertions in the service of both Cook and his family.
"Captain Cook was justly regarded as sufficiently qualified to relate
his own story. His