taking a lesson from nature, which in all cases is the surest 
guide in cultivation. The growth of this plant like that of 
most others is periodical ; after it has perfected its flowers 
and leaves it gradually sinks into a state of repose until the 
season of growth comes round again, when it pushes up its 
leaves and its flowers if in health. Water therefore freely 
whenever the plant shews signs of growth, and go on until it 
has perfected its leaves; but discontinue watering as soon as 
the leaves begin to look yellow, and shew signs of decay. 
The best soil to grow it in is peat, loam, and sand. 1t 
may be propagated by seeds. 
ERRATUM. 
Tab. 16, second page, line 6, for anterior space read anterior spur. 
