* 
18 On the Cypress Timber of Mississippi and Louisiana. 
can be little or no ingress of ise a matter but what is of 
vegetable origin, their “distances rom the river being such as to 
deprive the waters of their sediment, as tebe is usually a Jong 
continuation of brushwood and cane lands through which the 
waters must slowly pass. This seems to preclude the possibility 
that the basins ean derive all their deposits of clay either from 
the contiguous soil or from annual inundation.* 
Fig. 1. 
FT gt 
Ill. The character and ies te of te cypress t 
these basins, bayous and sloughs, is found to vary very Toe. 
That growing along the margins of shallow bushy bayous, is of 
inferior quality, affording but a small portion of timber fit for 
useful purposes ; although oftentimes large, it is commonly of 
coarse texture and uncouth aspect; protruding at every eleva- 
of 
tion decaying limbs, which carry disease and rot into the body 
the larger trees, rendering them more or less unfit for use; and 
those of swaller dimensions, in consequence of their limbs and 
ieeiprents defects, are as often valueless. The general form at 
n of this deposited material was exhibited to Association, ane 
st that by a chemical 5 tion much light will be etvione 1p- 
Eiperctining how far it is possible that ans may be 
ris alone 
