FURTHER ILLUSTRATIONS OF THE APPLICABILITY OF A 

 COEFFICIENT MEASURING THE CORRELATION 

 BETWEEN A VARIABLE AND THE DEVIA 

 TION OF A DEPENDENT VARIABLE 

 FROM ITS PROBABLE 

 VALUE 



J. ARTHUR HARRIS 



Station for Experimental Evolution, Cold Spring Harbor, New York 

 [Received November 1, 1917] 



TABLE OF CONTENTS 



PACK 



INTRODUCTORY 328 



Earlier applications 3 3 j 



Further illustrations 332 



Illustration I. Proportionality of parts in Paramecium 332 



Illustration 2. Absence of relationship between size of litter and sex in swine 336 

 Illustration 3. Proportion of pistillate and hermaphrodite flowers in the 



inflorescence of the composite Homogyne 336 



Illustration 4. Fertility of capsules and viability of seed in carnation crosses 337 

 Illustration 5. Relationship between the total number of pedicels and the 



number of abnormal pedicels in Spiraea Vanhouttci 337 



Illustration 6. Interrelationship of cotyledons and primordial leaves in a race 



of Phaseolus vulgaris highly variable in seedling characters 340 



Illustration 7. Change in proportion of parts in developing trout 344 



Illustration 8. Relationship between total solids and sucrose content in the 



j uice of sugar beets 346 



Illustration 9. Relationship between total number of spikelets* and number 



of sterile spikelets in wheat 348 



Illustration 10. Viability of dominants and recessives in F generation of 



Mendelian hybrids &quot; 3^ 



RECAPITULATION -- 



LITERATURE CITED . 



3o i 



INTRODUCTORY 



Eight years ago I pointed out (HARRIS 1909 a) that wheels some 

 fraction of x the correlation between them, r xv , while of descriptive value, 



GENETICS 3: 328 Jl 1918 



