from Botanical and Economic Aspects. 221 
size, had a pale gamboge colored skin, clear pulp, and a 
small whitish yellow stone. It may fairly be regarded as the 
most aberrant type encountered. 
In estimating weights, twelve plums were selected at 
random from one type and weighed in mass. The average 
weight of one was therefrom deduced. Specimens that 
appeared to be the smallest, medium and largest of this type 
were then selected and weighed individually. A final estimate 
was obtained by comparing the mean of these with the result 
of the former weighing : 
Fruit weight. Stone weight. Flesh. 
( No. ae. F 1.26 gr. -43 gr. 83 
INO 2) races ee ER tee 41 1.12 
Purple-green to | No ger en ase aor 1.17 
blue and blue-} No. 4..... 1.68 «§ sone 1.29 
black. INOe Sitats cag. Paepag | 55: 1.72 
tNO- WO dit cette 2 Bose AT Ss 2.11 
| No Sef e o e 3-61 .60 “ 3.01 
Reddish purple. No. 8..... 2.93 “ -59 “ 2.34 
Red. INGs 5 Oat abt coe. 2.24“ 53 1.71 
Red-yellow to ¢No.I0..... 4.g2° 5° a. 5 2.57 
yellow. INOZE i oe seas 2.12 ** 42 *§ 1.70 
Small yellow. INGAEZ eae Tage I et &/ 
From the above table the following approximate estimates 
can be made, in comparing fruit weight with stone weight: 
Stone weight one-sixth that of fruit weight = No. 7. 
Stone weight one-fifth that of fruit weight — Nos. 6, 8, Io, 11, 12. 
Stone weight one-fourth that of fruit weight — Nos. 3, 4, 5, 9- 
Stone weight one-third that of fruit weight = Nos. 1, 2. 
The order, in weight, of stones from the lightest to the 
heaviest is as follows: Nos. 12, 3, 4, 2, II, 1, 6,9, 5, 8,7; 
10. 
The extreme importance of such marked variation condi- 
tions, as affording starting points for successful cultural results, 
will be emphasized in a later part of this paper. But the 
statistics are of high scientific interest as proving that within 
