proposed I'lf the Geological Society. 42S 



§ V. Concerning Lakes, Springs, and Wells. 

 1. — Lakes. 



1. The extent, depth, temperature, and other properties of 

 the water ? 



2. The periods and amount of their greatest annual increase 

 and decrease ? 



3. Whether suppHed by springs or streams, and whether any 

 streams flow out of them ? 



4. Of what is the bason composed ? 



5. Are there any appearances that indicate the extent to have 

 been formerly different from what it is at present ; and does this 

 alteration seem to have been gradual or sudden ? 



6. Are there shoals of gravel and low islands in those parts 

 where streams flow in ; and do these increase from year to year? 



2. — Springs. 



7. The physical and chemical properties of the water — the 

 nature of its deposit ? 



8. The quantity discharged in a given time, and the degree 

 to which this is affected by dry or wet seasons ? 



9. The kind of rock from vvhich the water issues ? 



3.— mils. 



10. Their depth? 



11. The number, thickness, and species of strata pierced 

 through in sinking, and the order of their position ? 



12. Whether all the wells of a district derive their water from 

 the same stratum ? 



13. Whether, when the water first flows, it rises rapidly, and 

 accompanied by sand ? 



14. Is the water liable to periodical increase or decrease ? 



§ VI. Concerning Shores or Coasts. 



1, If the shore is flat, to what extent? and whence are the 

 sand and pebbles derived ? Are they jiart of the adjacent cliffs, 

 or brought down by rivers, or deposited by the sea ? in what 

 quantity and of what description ? 



2. If the coast is precipitous, the form and elevation of the 

 cliffs, with the nature and disposition of the rocks which com- 

 pose them ? 



§ VII. Concerning the Sea. 



1 . Its depth, tides, currents, inlets, nature of the bottom,&c. ? 



2. The height to which it rises ? 



3. \Vhat effects has it produced on the adjacent rocks,&:c.? 



4. Are 



