4:12 Repoet of Farmers' Institutes 



4 



Means of Ventilation 



Ventilation is so managed as to keep the air pure and in lesser 

 degree to aid in the control of temperature. Under proper ventila- 

 tion, plants are more hardy and healthy. 



GREENHOUSE CROPS 



The leading greenhouse crops are lettuce, cucumbers, and 

 tomatoes. Others are grown to lesser extent, among them being 

 radishes, parsley, melons, beets (both roots and greens), rhubarb, 

 witloof chicory, and others. Ordinarily, lettuce is the backbone 

 of the cropping plan, being grown throughout the winter months. 

 As it requires a lower temperature than cucumbers and tomatoes, 

 it fits in well with the colder season. The cucumber yields good 

 profits, even well into the summer, but thrives under warmer 

 conditions. The tomato fits in a similar place, but is not quite so 

 widely grown. Both of the latter crops may also be grown in the 

 fall, but it is necessary to gain an early start with them if the 

 results are to be of the best. Each crop has its own specific 

 requirements that must be observed to secure the best results, 

 and time does not permit us to go into the almost innumerable 

 details that are involved. 



COMMERCIAL AND AMATEUR FLOWER PRODUCTION 



Edward A. White 

 Professor, Department of Floriculture, Cornell University, Ithaca, N. Y. 



1 have been asked to speak this afternoon regarding the flower 

 growing industry, and it gives me pleasure, — for my interests for 

 many years have been centered around this important branch of 

 horticulture. I have been somewhat undecided as to what phases 

 of the subject I had best consider in this talk, for the general 

 subject is a broad one for one lecture. I have decided, therefore, 

 to omit cultural details and speak more especially of flower gTOw- 

 ing m a general way. 



In our consideration of flower growing, the subject shapes itself 

 into a few topics that are clearly defined. The first division is 

 commercial floriculture ; other divisions are the growing of plants 

 in conservatories for ornamentation, and the last phase of the 



