BUD VARIATION IN THE LISBON LEMON. 17 
shown in the accompanying data. All mstances in which fruit was 
lost, as described above, are noted in Table III. 
Table IV shows the different forms of most frequent occurrence 
which were classed as variable fruits, and the total number of each 
form recorded from each of the trees listed in Table III during the 
investigational period. It will be noted that the large number of 
fruits of the Lisbon strain listed as collared, protruding blossom end, 
and ridged vary but slightly from the typical fruit of the variety 
and are continuous variations or fluctuations, probably caused to 
some extent by certain climatic conditions. These fluctuations 
are encountered in all the strains of this variety. A similar condition 
was found in the Eureka variety. 
137435°—20—Bull. 815——2 
