2o8 The Canadian Horticulturist. 



There should be two or three openings the size of a brick left in the side 

 walls near the ground for the entrance of cold air to drive the heat rapidly up- 

 ward. Close these when necessary. Attach to the rear end of the furnace a 

 stove pipe and let it pass thro jgh one of the side walls and up on the outside of 

 the evaporator to the height of eight feet. Beneath the trays and above the fur- 

 nace suspend by wires a strip of sheet iron three feet wide and ten feet long. 

 Bend this in a semi-circle so that the edges of the sides will be two feet apart. 

 Place this sheet iron as near to the trays and as far as possible above the fur- 

 nace, with its convex side downward. It will then direct the currents of hot 

 air into the air chambers on either side of the evaporator. From thence the 

 heated currents pass underneath and over the trays to the opening in the centre 

 of the trays ; from thence upward and out through the ventilator at the top of 

 the evaporator. — S. A. Latimer, before Missouri Horticultural Society. 



' MARKET GARDENING. 



An excellent article, contributed by W. W. Rawson of Massachusetts, a well- 

 known cultivator of successful experience, answers the question, how to learn 

 the trade to the best advantage. He would advise young men who are thinking 

 of taking up market gardening as a business, instead of rushing into it at once, 

 without preparation and experience, first, to carefully study all the requirements, 

 to complete the grammar school course, to spend one or two years at a com- 

 mercial college, then go to the agricultural college, and after that course is com- 

 pleted spend one year at the Experiment Station. Then hire to the best market 

 gardener for three or five years. " Then," says Mr. Rawson, " you will be 

 fitted to take a position as foreman, or you may carry on the business yourself." 

 He says he has pursued the business twenty-five years, has been unusually successful 

 and yet he finds many things to learn, and that the business is yet in its infancy. 

 Among other things, the main requirement depends more on the man than on 

 anything else. He must understand the nature of growing plants ; the different 

 qualities of soil for each ; the best time for planting ; the mode of cultivation ; 

 the use of glass ; he must be a practical engineer ; understand something of 

 chemistry and botany ; be familiar with the laws of nature ; and added to all 

 these requirements, the more common sense he has the better. Many young 

 men have come to Mr. Rawson and would like to work for him for one year that 

 they might learn the trade. He has told them that five or six years would be 

 short enough. For an advanced establishment a special superintendent must 

 be employed, a salesman, a machinist to look after the machinery and tools, a 

 night man to look after fires in winter, a painter to keep wood work in order, a 

 harness maker, a man to take special care of horses and prevent sore shoulders, a 

 vegetable packer to see that all are in a saleable condition, and a foreman for 

 each department. — Country Gentleman. 



