" as MR. SHADBOLT well expresses it, but likewise all the
other substrata of iodide of silver.

T. L. MANSELL.

Guernsey.

_Photographic Experience._--The plan proposed by DR. MANSELL, in the last
Number of "N. & Q.," for comparison of photographic experiences, will, I am
sure, prove of much practical advantage and I therefore lose no time in
filling up the table published in your paper:

1. Eight minutes' exposure.
2. South Wales.
3. Mr. Talbot's original receipt.
4. Turner.
5. 3/8 inch.
6. 2 inches.
7. 3 inches. Focal length, 17 inches. Maker, Ross.

I would also suggest that the character of the object copied should be
included in the above table. My answer supposes a light-coloured building,
of an ordinary sandstone colour. A view comprising foliage would require a
much longer time for its full development. In working on the sea-coast, I
find that the dark slate rocks of north Cornwall require an exposure in the
camera half as long again as the blue mountain limestone cliffs of South
Wales, which abound in actinic power.

J. D. LLEWELYN.

Pen-ller-gaer.

* * * * *

Replies to Minor Queries.

_Turkish Language_ (Vol. ix., p. 352.).--Your correspondent HASSAN, who
would much gratify our friends the Turks if he would spell his signature
with one _s_ only, will find the object of his inquiry in a little book
just published by Clowes, Military Publisher, Charing Cross, _Turkish and
English Words and Phrases, for the Use of the British Army and Navy in the
East_, price 1s. The pronunciation is given in the Roman character, and
according to the plainest English rules.

OSMANLI.

_Dr. Edward Daniel Clarke's Charts of the Black Sea_ (Vol. ix.,
p. 132.).--A reply respecting these important Charts, and their value, was
given by the First Lord of the Admiralty in the House of Commons on March
6, in consequence of an inquiry made by Mr. French. Sir James Graham {457}
is stated by _The Times_ of the following day to have said on that
occasion:

"The Charts alluded to by the hon. gentleman were most valuable, and
had been made use of; but subsequent observations, and farther surveys,
had in a great measure superseded them at the present time."

ELLUM.

_Aristotle on living Law_ (Vol. ix., p. 373).--Your correspondent H. P.
asks where Aristotle says that a judge is a living law, as the law itself
is a dumb judge. The first part of this antithesis is