598 EXPERIMENT STATION RECORD. 



The analyses are as follows : 



Analyses of melons. 



The percentage of juice obtained by a pressure of 300 atmospheres 

 was 70.09 from the " sugar melons," 72.03 from the " Persican " melons, 

 and 87.60 from the watermelons, so that although the 3 kinds of mel- 

 ons contained nearly the same percentage of water, the watermelons 

 were much the juiciest. They were also the sweetest, which may have 

 been due to their being the freshest. 



Investigations on the organic acids and the albuminoids are promised 

 later. 



Fertilizer experiments with pot plants, H. Muller-Thurgau 

 {Jahresher. Vers. Sta. Wadcnsiveil, 4, pp. 52-54; ahs. in Boi. Centbl., 68 

 {1896), iVo. ,9, 2^V- 2^^i -399). — The author experimented with fertilizers 

 upon various pot plants in cold frames. The mixtures used were: (1) 

 Potassium nitrate, potassium phosphate, ammonium sulphate, and 

 ammonium nitrate in the proportion of 30, 25, 10, and 35 parts of each, 

 respectively, and (2) the same substances with the exception of the 

 ammonium nitrate. It was found that the first mixture should be used 

 when a luxuriant growth of the plant is desired, and the second when 

 it is sought to cause the ])lant to bloom. 



Pollination of plums, F. A. Wafgh ( Vermont Sta. Bid. 53., pp. 47-64, 

 figs.5,pJ.l). — The author discusses briefly the general relations between 

 cross fertilization and fruitfulness, as shown in the strawberry, pear, 

 and grape, and considers that the failure of the plum to fruit under 

 seemingly favorable conditions, the instances of success in practical 

 plum culture by mixed planting and intergrafting of different varieties? 



