306 ANNUAL RKl'OKT OF THE Off. Doc. 



than a four inch pot, and the three inch size is very satisfactory. 

 A larger size makes much more material to handle, thus increas- 

 ing the expense as four-inch pots cost al least one-third more than 

 the three-iuch size. For the earliest tomatoes, it is a decided ad- 

 vantage to keep the potted plants in a greenhouse or hotbed 

 although most excellent plants may be grown by placing the pots 

 in cold frames immediately after transplanting which, in this section, 

 would be about the 20th of April. 



(Notes on the construction and use of hotbeds and cold frames 

 and the general care of plants are published in the bulletin to which 

 we referred in the beginning of this paper.) 



The following questions were asked during the delivery of Prof. 

 Watts' address: 



A Member: What depth of soil do you use in your greenhouse 

 beds? 



PROF. WATTS: About five inches. 



MR. SCHWARZ: You have manure under that, don't you? 



PROF. WATTS: We have a small quantity of manure. 



MR. SCHWARZ: Excuse me; your plants are not usually as large 

 when you put them in, are they? (Referring to plants exhibited 

 by Prof. Watts — tomato plants.) 



PROF. WATTS: No, they are not ordinarily quite as large as 

 that; in fact, I would rather have a plant not quite as large as that; 

 it will make a better plant than one larger. 



The CHAIRMAN: Do you want your bone meal ground real fine? 



PROF. WATTS: Yes, as fine as you can get it. 



A Member: About what depth do you use for boxes? 



PROF. WATTS: We use boxes just about like that. (Exhibiting 

 one.) 



A Member: That box is about two inches deep. 



PROF. WATTS: Yes, just about two inches deep. 



A Member: Do you find that box deep enough for the last trans- 

 planting? 



