78 FAMILY STUDIES IN BUILD. 



slender, which suggests a trihybrid ratio and that there are at least 

 3 pairs of factors present for fleshiness; and that, of these, 3 or 2 pairs 

 are present in each parent (table 18). It may be that in the Dol-3, 

 Sle-2, and Thi-2 families the parental gametes carry fewer genes for 

 fleshiness. Details are given in the following histories. 



Dol-3 Family. 



A family of German extraction living in Ohio. The Father, an inventor, 

 suffered in youth from typhoid, has at 59 years the formula 180/67 inches; 

 build 2.8 (40). His father, an inventor and machinist, died at 73 years 

 from "old age," with the formula 165/M inches; build, say, 2.5 (36). His 

 mother, always well, died at 70 years from "general debility," with the 

 formula 140/S inches; build, say, 2.7 (38). 



The Mother, who underwent an operation for "fatty tumor," is living at 

 57 years, having the formula 175/66 inches; build 2.8 (40). Three of her 

 sisters died in infancy from convulsions. Her father, a bookkeeper, died 

 at 98 years from a paralytic stroke, having the formula 160/66 inches; build 

 2.6 (37). Her mother's build was 180/66, or 3.7 (41). The 5 children 

 who grew up: 



1. Female, who in youth suffered from diphtheria, has at 30 years the 

 formula 118/64 inches; build 2.0 (29) ; adjusted to 55 years, 131/64 inches; 

 build 2.2 (32). 



2. Male, a machinist, who in youth suffered from diphtheria, has at 27 

 years the formula 160/73 inches; build 2.1 (30); adjusted to 55 years, 

 176/73 inches; build 2.3 (33). 



3. Male, a student, who in youth suffered from typhoid, has at 25 years 

 the formula 150/68 inches; build 2.2 (32); adjusted to 55 years, 164/68 

 inches; build 2.5 (36). 



4. Male, a man of science, always well, has at 23 years the formula 

 150/68 inches; build 2.3 (32); adjusted to 55 years, 166/68 inches; build 

 2.5 (36). 



5. Female, a teacher, always well, has at 20 years the formula 120/64 

 inches; build 2.1 (29) ; adjusted to 55 years, 139/64 inches; build 2.4 (34). 



Comment. — Both stout parents come of stout or medium stock. Of the 

 children, 3 are slender, 2 are medium. Adjusted, all are of medium build 

 (R : Dol-3). 



Lan-A Family. 



A family from the State of Washington. The Father at 82 years had 

 the formula 180/70 inches; build 2.6 (37). His 3 sibs are: (1) brother, at 

 50 years, 160/74 inches; build 2.1 (29); (2) brother, at 26 years, 190/73 

 inches; build 2.5 (36) ; (3) sister, at 70 years, 180/70 inches; build 2.6 (37). 

 Their father, at 90 years, had the formula 200/74 inches; build 2.6 (37); 

 their mother at 95 years, 160/66 inches; build 2.6 (37). 



The Mother at 52 years had the formula 170/65 inches; build 2.9 (40). 

 Her one sister at 78 years, 145/64 inches; build 2.5 (35). Her father at 54 

 years, 200/68.5 inches; build 3.0 (43). Her mother at 82 years, 170/68 

 inches; build 2.6 (37). The two children: 



1. Male, at 58 years, has the formula 240/68.5 inches; build 3.6 (51). 



2. Female, at 48 years, 120/64 inches; build 2.1 (29). 



Comment. — Details concerning this family are lacking, From two stout 

 parents, one of whom has a slender 2.1 (29) brother and the other a father 



