froin 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 w^eights, 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. 



Purple-green to 

 blue and blue- 

 black. 



Reddish purple. 

 Red. 

 Red-yellow to 



yellow. 

 Small yellow. 



rNo. 



No. 

 No. 

 No. 

 No. 

 No. 

 [No. 

 No. 

 No. 



I 1.26 gr. 



2 1.53 " 



3 '-55 " 



4 1.68 «' 



5 2.27 *' 



6 2.58 " 



7 3-6i " 



8 2.93 " 



9 2.24 " 



J- No. 10 3.32 '' 



\No. II 2.12 " 



No. 12 1.45 " 



43 gr- 



41 " 



38 " 



39 " 

 55 " 

 47 " 

 60 " 



59 " 



53 " 

 65 '« 



,42 «' 



28 " 



Flesh. 



•83 

 1. 12 



1. 17 



1.29 



1.72 



2. II 



3.01 



2.34 

 1. 71 



2.57 

 1.70 

 1. 17 



From the above table the following approximate estimates 

 can be made, in comparing fruit weight wath stone weight: 



Stone weight one -sixth that of fruit weight = No. 7. 

 Stone weight one-fifth that of fruit weight = Nos. 6, 8, 10, 11, 12. 

 Stone weight one-fourth that of fruit weight = Nos. 3, 4, 5, 9. 

 Stone weight one-third that of fruit weights Nos. i, 2. 



The order, in weight, of stones from the lightest to the 

 heaviest is as follows: Nos. 12, 3, 4, 2, 11, i, 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 



