170 GARDENING FOR PROFIT. 



MUSTARD. — {Sinapis alba, and S. nigra.) 



Is used for culinary purposes as a salad, usually in con- 

 junction with Cress. For this purpose it may be had 

 throughout the entire season, by sowing daring winter in 

 hot-beds or forcing pits, and, on the opening of spring, in 

 the open ground, where, by sowing at intervals of two or 

 three weeks, it may be had in proper condition for use 

 throughout the year. Sow thickly in rows, 1 foot apart, 

 on any soil. 



White Mustard. — This is the variety mostly used as a 

 salad ; the seeds are bright yellow, and are used in the 

 manufacture of the mustard of commerce. 



Black Mustard • — This variety is hardly distinguishable 

 from the preceding, except in the color of its seeds, which 

 are dark-brown ; they are used for medicinal purposes, and 

 also in manufacture of Mustard. 



MUSHROOM. — {Agarkus campestris.) 



I know of no vegetable which has such a novelty and 

 interest to the beginner, as the cultivation of the Mush- 

 room. In all other vegetables he sees something tangible 

 to start with — seeds, plants, or roots ; but here, we may al- 

 most say he sees neither, for the seeds cannot be seen with 

 the naked eye, and it requires an unusual effort of the im- 

 agination, to believe the white moldy subtance we call 

 spaw?i i to be either plants or roots. There are so many 

 different systems of growing the Mushroom, detailed in 

 most of the works on gardening, that the reader is too 



