British Guiana Exhibition. 285 
equal to that of Para. Castor Oil on the contrary was 
very poor ; this cannot be made well without powerful 
machinery. A sample of Essence of Lemon was almost 
too good to have been made in the colony. 
A very interesting Exhibit in this department was the 
water from the Artesian well of Mr. Beckwith. The 
specimens of the clays brought up in the borings were 
also noticeable. That fair potable water can be procured 
on the cattle farms by means of wells must be a source of 
satisfaction to those who have had great losses during 
long droughts. 
There was a fair show of Medicinal Barks and Seeds, 
but as usual, most of them were badly labelled, the 
names (where there were any) being misspelt and the 
labels often loose. Unfortunately little was done to- 
wards elucidating the botanical sources of the different 
medicines, by preserving specimens of the leaves and 
flowers. A portfolio of Herbarium specimens was ex- 
hibited to show what was wanted, these being mostly 
Creole remedies, the botanical sources of which are 
generally known. It is still very desirable that the Indian 
medicines should be illustrated in the same manner. It 
is well-known that there are great difficulties in the 
way of procuring characteristic specimens of forest trees, 
but if some of our wood-cutters would take a little 
trouble to get dried specimens of flowers and leaves they 
would be very useful. 
Some of the specimens exhibited were very good, but 
for want of space they were not shown to advantage. 
The astringent barks, which form nine-tenths of the 
Indian remedies, were well represented, and some of 
the directions for use rather curious. There were several 
