144 THE CULTURE OF THE GEAPE. 



April 1st. — ^Temperature the same as in March ; from 

 day to day have been examining and thinning the berries, 

 when it was found necessary. 



April 10th. — ^The first grapes began to color, near the 

 furnace, this day. Temperature as above. 



April 20th.— The Zinfindal, Early Black July, and 

 Grizzly Frontignan coloring ; the Pitmaston White Clus- 

 ter nearly ripe, and the Chasselas Bar Sur Aube chang- 

 ing color. 



May 1st. — ^The temperature, at night, 70° ; by day, if 

 cloudy, 75° to 80° ; by sunshine, 85° to 95°, with air 

 freely admitted. The first Black Hamburgh grapes begin 

 to color ; the pans of water were removed from the fur- 

 nace and from the flue, where the grapes have colored, 

 or are nearly ripe ; the bunches were examined, and all 

 defective berries cut out ; all thinning, for the season, 

 was now finished. 



May 10th. — The grapes were ripe on the first five vines ; 

 part of the fruit, from Chasselas Bar Siir Aube, Zinfindal, 

 Early Black July, Pitmaston White Cluster, and Grizzly 

 Frontignan, has been gathered ; more of the pans of 

 water were removed from the flue. 



May 20th. — Cut Black Hamburgh grapes fully ripe ; 

 the grapes were all ripening in every part of the house, 

 and have colored well ; all the pans of water are now 

 removed, and the house kept as dry as possible. 



June 1st. — The weather now being warm, the making 

 of fires was omitted, excepting in wet weather, when 

 small fires were made in the daytime, and the house was 

 opened for ventilation. 



June 10th. — Half the crop was fully ripe, and the re- 



