Ferns and Fern Culture. 65 
tage. Also, every day, until the sunlight becomes too 
strong, and in the afternoon and evening, when the sun 
is no longer a source of danger, the plants can have the 
full light. This is of the highest importance; it is the 
cause of health and vigour of plants, which under other 
conditions of shade would have been weakly and of far 
less beauty. 
When permanent shading is used in the form of powder 
sold for the purpose, white should be selected; green 
may obscure the glass more and produce a heavier shade, 
but this is beneficial only for a small portion of the time 
it is on the glass. It keeps out too much light at other 
times, and even if only.a thin coating is put on the colour 
is objectionable. Cream colour is better than green, but 
white is best of all, for it will allow more light to pene- 
trate on a wet or dull day, a matter not to be despised. 
Whatever colour is used, it should be put on neatly. 
The practice of syringing it on produces a most untidy 
appearance as well as imperfect shade, and should not be 
tolerated anywhere. As soon as it possibly can be dis- 
pensed with, all shading should be removed, and the 
plants allowed the unrestricted light. Ferneries should 
never be glazed with green glass, but always with the 
clearest that can oe obtained, 
