626 
APPENDIX. 
[C. 
If in strata, — ^what are the thickness, inclination to the 
horizon, and direction with respect to the compass, of 
the beds? — [If these cannot be measured, an estimate 
should always be recorded, while the objects are in 
view.] — Are they uniform in dip and direction? — curved, 
or contorted ? — continuous, or interrupted by fissures or 
veins ? 
Is the whole cliff, or mass of strata in sight, of uniform com- 
position ?— or does it consist of different kinds of stone ? 
If the strata be different, — what is the order in which they 
are placed above each other successively ? 
10. A label, distinctly written, should accompany every 
specimen, stating its native place, its relative situation, S^c., 
^c. And these labels should be connected with the speci- 
mens immediately, on the spot where they are found. — 
This injunction may appear to be superfluous ; but so much 
valuable information has been lost to geology from the 
neglect of it, that every observer of experience will ac- 
knowledge 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 re- 
lations of rocks, than the longest memorandum. If num- 
bers, 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 me- 
morandum should be looked over soon afterwards, and 
labels distinctly explaining their situation, ^c., 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 fric- 
tion : for which purpose, if strong paper cannot be obtained, 
