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APPENDIX. 
except to remove decayed parts, or train up a too exuberant growth. Even were 
the discovery capable of no further extent, it would be most invaluable in the 
transport of plants from one country to another, preserving them from the vicissi- 
tude of season, from the effect of salt spray (so detrimental to most plants), and 
from the inattention of their temporary guardians. Indeed Mr. Ward’s air-tight 
cases are now universally employed for the transit of living plants. We would 
advert, moreover, to the injurious effect of a contaminated atmosphere upon plants, 
and remind our city friends of their repeated disappointments in window culture, 
or of their abortive attempts to ruralise their back court-yard. Mr. Ward’s plan 
ensures them success ; it is only necessary to cover it with glass — to have but one 
door of ingress, and that seldom to be used — and to stock the covered space with 
any plants that can endure a shady situation (among which the Ferns stand pre- 
eminent), and they have at once a beautiful greenhouse. It may, perhaps, be 
but a glass closet attached to the outside of an ordinary window, or it may extend 
the width of the house — in either case success is certain. Those who are desi- 
rous of learning more upon the subject may consult a little work by Mr. Ward, 
entitled, ‘ Growing of Plants in Closed Cases,’ and which is published by Mr. 
Van Voorst, Paternoster row. 
