THE EARLY GRAPERY" OR FORCING HOUSE. 87 



stage, to the extreme changes that frequently occur. 

 This free ventilation will, in the course of a week or two, 

 prepare the leaves for the full and uncontrolled action of 

 the air, and the house may then be left open night and 

 day throughout the remainder of the season, and there 

 will be no further trouble than stopping the too extended 

 growth, or an occasional thorough syringing over all parts 

 to check the red spider, thrips, or other insects, the two 

 first of which become a great pest to early forced vines 

 when not attended to. 



To obtain a second early crop, which may be considered 

 to be ripe by the middle of June, or early part of July, it 

 will be necessary to apply fire heat from the beginning 

 or middle of February, as the case may be ; and as all 

 the details of management have been heretofore explained, 

 the same practice, with slight modifications, will be appli- 

 cable. The annexed journal, which was kept by the 

 writer, during the progress of a house of this character 

 last year, giving the temperature inside the house, and 

 outside in the shade, at sunrise, noon, and ten o'clock at 

 night with the current kind of weather, and occasional 

 remarks, will, perhaps, supply any deficiency that may 

 have accidentally occurred. 



