128 



GREENHOUSE CONSTRUCTION 



A Member : I should think there would be more breakage with a 

 large size. 



Professor Beal: I should think there would be. 



A Member: We find it so. We have houses side by side, and 

 last season we laid out double the amount in repairing the large size 

 that we did with the other. The small size will hang right there if 

 you put it on right. 



Professor Beal: The usual way of putting in sixteen by 

 twenty -four is the sixteen inch way. The whole tendency now is to 

 get just as light a house as you can consistent with strength. The 

 question is, in some cases, whether we have not overstepped the 

 bounds. A great deal depends, however, on the character of the glass 

 itself. I think there is no question but that glass manufacturers are 

 imposing upon the florists at the present time. Glass varies very 

 much in a box as to thickness and weight of panes. Of course, there 

 are differences in annealing the glass that are difficult to detect, but 

 it is possible to grade the glass better than they do. Even though 

 panes are all the same thickness, they are not necessarily the same 

 strength. 



Question: You would always want to use the double thickness, 

 would you not? 



Professor Beal: Yes, very little single thickness is used. 



Queston: What is the actual cost of a one hundred foot house 

 thirty feet wide? 



Professor Beal : That is difficult to answer as so many different 

 factors enter. Builders rate the prices of greenhouses anywhere from 

 forty to eighty cents per square foot of ground covered. Houses are 

 of such different types, the different builders including different 

 features, that it is difficult to make a comparison. Western builders 

 that build wooden houses mostly figure the price of greenhouses at 

 from ten to fifteen dollars per running foot, according to the width of 

 the house, having reference to houses twenty to thirty feet in width. 



Question : Would you care to go into the system best suited for 

 heating at this time? 



Professor Beal : We have not time to go into that, but I think 

 that in practically all cases hot water is the best system for the small 



