282 PRACTICAL FLORICULTURE. 



pipes, with a mixture of sulphur and cow dung, sulphur 

 and guano, or sulphur and lime. Either of these in- 

 gredients will do to mix with the sulphur, the object be- 

 ing to merely give a body to the mixture. We also paint 

 our steam pipes with these mixtures, but care must be 

 taken not to have more than one-fourth of the steam 

 pipes painted, else the fumes of the sulphur might be 

 strong enough to injure the leaves. For Black Spot, or 

 Black Mildew, and Club Root or Wart Root, see chap- 

 ter on '' Rose Growing in Winter, " 



CHAPTER LVI. 

 DIARY OF OPERATIONS FOR THE YEAR. ^ 



The following diary of operations and observations of 

 temperature was taken by my general foreman, at our 

 greenhouses at Jersey City, N. J., from September 9th, 

 1867, to September 9th, 1868. It is here given with 

 some additions from our operations taken from a diary 

 running through the same months in 1885 86. Al- 

 though it necessarily contains many repetitions and mat- 

 ters of minor interest, it will be found very valuable as a 

 guide to the beginner, as well as for convenient reference 

 to those of mature experience. We ourselves find such 

 a diary an excellent monitor, as the importance of dates 

 in all horticultural operations can not be over-estimated. 

 The record of the thermometer taken in 1867 68 is 

 placed at the end of the notes for each day, the firs* 

 figure giving the temperature in the shade at 6 A. M., 

 and the second that at 6 P. M. 



SEPTEMBER. 



9th. From this date, once a week or oftener accord- 

 ing to necessity, all plants grown under glass are syringed 



