SUCCESS IN MARKET GARDENING 



He must be an engineer, a machinist, a carpenter, 

 a chemist, a botanist and a horticulturist. It will 

 cost him time and study to make himself familiar 

 with all he has to look after. It will take him all 

 of five years' time, and he must show himself an 

 able scholar, even then. 



In hot-houses, the temperature required being 

 attained by the use of pipes conveying steam or 

 hot water, relatively a small amount of manure 

 will be requisite as compared with that required 

 to create and maintain heat in beds, by the process 

 of fermentation. 



It requires a fifty-horse-power boiler to heat one 

 hundred thousand cubic feet of space to a tem- 

 perature of 60 degrees when the outside air is at 

 zero Fahrenheit. It takes one ton of coal for 

 every five hundred cubic feet of space to heat at 

 same temperature and carry through the season 

 from November 1st to the 1st of May, and there 

 must be provided one foot in length of one-and-a- 

 quarter-inch steam pipe for every twenty cubic 

 feet of space to heat the pipes to be equally dis- 

 tributed. With the use of hot water instead of 

 steam, it takes a four-inch pipe to do the same 

 amount of heating that is done by the one-and-a- 



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