Il6 TlMEHRI. 
as can be seen the conditions are not likely to be speedily 
changed, Lamaha water is alone to be had. Now Mr. 
Francis has discovered that the substance known as 
' aluminoferric-cake' purifies this Lamaha water, leaving 
it colourless and tasteless, at a very trifling expense and 
in a most thoroughly satisfactory way. And it was 
therefore not surprising that the aluminoferric-cake, and 
the Lamaha water purified by its means which he exhibited 
attracted universal attention and admiration. It is greatly 
to be hoped that this method of cheaply purifying Lamaha 
water may be brought into practical and extensive use as 
soon as may be convenient.* 
Turning now to the show of garden produce, we have 
once more to regret its poverty. Yet owing to the in- 
fluence of the Botanic Gardens, there is already some 
improvement in the gardens of Guiana ; so that the fruits 
and flowers and vegetables shown were certainly an im- 
provement on those at previous Exhibitions. And there is 
every reason for confidence that this improvement will be 
fostered and increased. It is impossible not to notice 
the very fine exhibits of plants sent from the Botanic 
Garden itself ; these, in the absence of much else worthy 
of notice, were in themselves sufficient to make this part 
of the Exhibition a success. 
Live stock was shown in unprecedentedly large quanti- 
ties ; but, if we may trust our own judgment, in quality it 
* The cost of aluminoferric-cake is 61/ per ton and this quantity is 
sufficient to purify over 1,350,000 gallons of Lamaha water. The 
daily consumption of this water in Georgetown is about 300,000 gallons. 
A certain quantity of soda ash or other alkali is required in addition to 
the alurninoferric cake. Altogether, the cost of purifying materials, 
freight to the colony included, for one day's supply of water is rather 
less than two pounds sterling. 
