42 Forestry Quarterly. 



the present time (middle of May, 1910) of the seed which had 

 been extracted and stored since the beginning of April, 1909. It 

 is recommended that carboys of this sort, but somewhat stronger, 

 be specially blown, capable of holding exactly one quart (i litre) 

 or 66 pounds (30 kg) of seed. A number is placed upon each 

 one with oil paint; corresponding numbers in a catalogue show 

 the assortment, germination, etc., of the contents. In order to 

 carry them into the cellar flat, strong osier baskets with strong 

 handles are recommended. Besides each carboy stands a little 

 medicine bottle, similarly filled with the same seed, painted with 

 the same number, and out of these we take test samples so as 

 continuously to watch over, in the germination chamber, the 

 preservation of the seed. 



The glass carboys are more convenient and easier to open and 

 shut than soldered tin containers concerning the tight soldering 

 of which there may be reasonable doubts, since we know how 

 often canned vegetables spoil because the little cans are frequently 

 not tightly soldered. The cans could of course be screwed air 

 tight but there have recently been doubts as to whether the 

 oxidation of the tin does not injure the enclosed seed which forms 

 carbonic acid. The contents of the glass carboys are always 

 visible and the division of the seed in the spring is easily managed 

 by the use of these carboys which contain 66 pounds (30 kg) in 

 each case. 



In building seed establishments the cellar should be constructed 

 near the extraction house, with double insolated walls and a 

 protecting double vestibule, possibly under the cone-shed or under 

 the living quarters of the kiln master or foreman. 



Since, however, according to Haack's investigations the seed 

 preserves its germinative energy better the nearer the tempera- 

 tur is maintained constantly at 32° F. (0° c), one will have to 

 build the cellar as the ice-cellars of large breweries are built. A 

 sufficiently large and strong vault is constructed and insolated 

 walls and roof are built about it. Ice is put between the vault 

 and the outer walls, care is taken to constantly remove the water 

 from melting and thus a suitable temperature is maintained. 



The cost of building such a seed-extracting establishment can 

 not be much higher than the cost of the usual conventional seed- 

 house having the same annual capacity. The cost of constructing 

 the cone-shed will be somewhat dearer ; everything else is the 



