135 
It will be well to note any works of this kind, and where 
possible to give an approximate idea of their antiquity. Where 
such works are being carried on at the present day, it will be 
well to state their object and describe the means employed. 
1. If earthworks are being constructed, how is the material 
procured, and how is it transported? what tools are used for 
digging and carrying ? give approximate sections and an esti¬ 
mate of the number of men, women, and children employed, and 
the amount of work done in a given time. 2. Is any piling 
employed? and if so, how driven ? and are there other materials 
than earth employed ? 3. If palisading is used, how are the 
trees prepared and fixed in the ground ? what is the mode 
of entrance and its defence ? 4. What is the usual manner of 
constructing bridges ? 
No. LXXXVIIL—TOPOGRAPHY. 
By HYDE CLABKE, Esq. 
1. What boundaries are there ? how are they marked ? 2. What 
are the names of places or routes followed by the natives ? 
3. What foreign slaves are there ? and what routes can they de¬ 
scribe ? 4. What geographical beacons or landmarks are there ? 
5. What seas are known ? and what is said of the land beyond 
them ? 6. How do the natives account for the sources of rivers 
and the formation of hills, valleys, rocks, &c. ? 7. What generic 
names have they for the natural forms of land and water ? 8. 
What is their idea of the form of the universe ? 9. What ac¬ 
count do they give of the history of creation ? 10. Give draw¬ 
ings of any native maps, and state whether they are done by 
the eye or by measurement. 
No. LXXXIX.—SWIMMING. 
Mode of ; powers of; uses; diving. 
