ence will acknowledge its necessity; and it
is, perhaps, in practice one of the most difficult to adhere to.

11. A sketch of a coast or cliff, however slight, frequently conveys more
information respecting the disposition and relations of rocks, than the
longest memorandum. If numbers, denoting the situation of the specimens
collected, be marked upon such sketches, much time may be saved at the
moment of collecting. But in all such cases, the memorandum should be
looked over soon afterwards, and labels distinctly explaining their
situation, etc., be attached to the specimens themselves.

12. The specimens should be so packed, that the surfaces may be defended
from exposure to air, moisture, and friction: for which purpose, if
strong paper cannot be obtained, dry moss, or straw, or leaves, may be
used with advantage. Where paper is used for wrapping the specimens, they
are best secured by fastening the envelope with sealing-wax.

Lastly, The collector must not be discouraged, nor be prevented from
collecting, by finding that the place which he may chance to visit in a
remote situation, has not a striking appearance, or the rocks within his
view a very interesting character; since it frequently, and even
commonly, happens, that facts and specimens, in themselves of very little
importance, become valuable by subsequent comparison; so that scarcely
any observation, if recorded with accuracy, will be thrown away.

...

The Instruments required by the geological traveller will vary, according
to the acquirements and specific objects of the individual. The most
essential are:

The Hammer (Sketch 5); which, for general purposes, may be of the form
here represented:

The head should be of steel well tempered, about 4 inches from the face
to the edge, and 1 1/4 inch square in the middle; the face flat, and
square, or nearly so; the edge placed in the direction of the handle. The
orifice for the insertion of the handle oval, a very little wider on the
outer side than within; its diameters, about 1 inch vertically, and 0.7
across; the centre somewhat more than 1 1/2 inch from the face. The
handle should be of ash, or other tough wood; not less than 16 inches
long; fitting tight into the head at its insertion, without a shoulder;
and increasing a little in size towards the end remote from the head, to
prevent its slipping. It should be fixed in the head by means of a thin,
barbed iron wedge.

For trimming specimens, smalle