Weight of 1000 Number of 

 seeds in grams seeds per kg 



Juglans cinerea I/., American seed. . 12100 85 



nigra L. 20000 50 



L. European 9600 100 



Quercus bicolor Willd 2509 386 



Catesbaei Mchx 1150 870 



coccinea Wgh 1580 630 



ilicifolia Wgh 1017 983 



lyrata Walter 3473 288 



macrocarpa Mchx 10910 92 



palustris Duroi 920 1187 



Prinus L 6000 170 



rubra .L., American seed . . 4017 224 



European seed 2729 400 



stellata Wgh 1020 980 



QUERCUS RUBRA and JUGLANS NIGRA seed of European 

 origin is much smaller than that from America; the size, however, 

 is very variable. In Table IV as the result of an earlier weighing 

 - QUERCUS MACROCARPA and Q. PALUSTRIS are given with 

 300 and 700 seeds to the kilogram. The weight of Q. PEDUNCU- 

 LATA, Q. CERRIS and Q. CONFERTA are also to be found in 

 Table IV. 



THE JAPANESE BROAD-LEAVED TREES. 



The Table of the East Asiatic species offers us little of interest, 

 except that the seed of the splendid BETULA MAXIM OWICZII 

 unfortunately germinates as a rule only from 1 to l 1 ^ / . In central 

 Europe this strong, slender tree is found to succeed splendidly on 

 heavy loam soils, and it is much to be desired that the Japanese 

 should soon send us this seed in good quality and at a suitable 

 price. On marshy soils the Japanese Birch succeeds just as little 

 as the American birches. 



ACANTHOPANAX RICINIFOLIUM, which some years ago was 

 fairly in demand, has proved unable to germinate in the germi- 

 nating apparatus, which seems to indicate that, in the beds, it lies 

 over a year in the earth before growing. 



CERCIDIPHYLLUM JAPONICUM, on the contrary, sometimes 

 germinates readily and quickly. The best result was as follows: 



