10 build: definition and ontogeny. 



4. Masters Day Nursery data, Original, from measurements made upon 

 healthy children in New York City. The chest was measured at the line 

 of the nipples in a quiescent condition. The numbers are small, 2 per year. 



5. Town (1922) data. A special study of 5 and 6 year old children of 

 Cedar Rapids, Iowa. There were 31 and 11 children respectively. 



6 Reitz (1904) data. A study of school children of Berlin, Germany. 

 Chest-girth measured "at rest." From 23 to 209 at the respective ages from 

 6 to 19 years, inclusive. 



7. Baldwin (1921) data. A group of 60 boys of the well-to-do class at 

 the Horace Mann School, New York City, were measured repeatedly in 

 successive years from 7 to 17 years of age inclusive. Chest at "normal" 

 condition. 



8. Godin (1903) data. Measurements taken annually on the same 100 

 boys in a French military school at St. Hippolyte-du-Fort, Gard. Chest- 

 girth below pectoralis in repose. Ages 131/2 to 17 years inclusive. 



9. Hitchcock, Seeley, and Phillips (1900) data. Measurements made on 

 about 40 to 600 students at Amherst College at each age from 16 to 26 years 

 inclusive. The chest-girth is made at the level of the nipples and embraces 

 the scapulse. 



Owing to the complex nature of the curve of build during the first 

 year of development, special collections of data were made for this 

 portion of the curve (table 4). They are listed as follows: 



1. Original data contributed by Dr. Bret Ratner, pediatrician, of New 

 York, being measurements made in May and June, 1922, of weight, length, 

 and chest circumference on 11 babies at the Manhattan Maternity Hospital 

 during each of the first 10 days after birth. There were 9 boys and 2 

 girls. Judging alone by the surnames, there were apparently of British 

 stock 6, of German stock 2, of Italian stock 2, and of Spanish stock 1. It 

 is very difficult to measure length and chest-girth of infants. Length "on 

 birthday" was generally taken with the child suspended by its feet, chest- 

 girth with the chest as quiet as possible. The first measurement was taken 

 as soon as the baby was born, and each morning thereafter at 8 h 30 m a. m. 

 The later lengths were measured on a graduated board. 



2. New York Milk Station data collected by Miss Louise A. Nelson and 

 Miss Margaret R. Babcock, of the Eugenics Record Office staff. They were 

 made during May and June 1922, on healthy babies, without clothing. The 

 length was measured with the aid of a graduated board. Boys and girls 

 were both included, as at this age their build is not very different, on the 

 average. The numbers ranged from 4 to 52 for the various months from 

 0.5 month to 13 months by 0.5-month intervals. 



3. Ratner advanced data. Original data secured by Dr. Bret Ratner 

 (at Manhattan Maternity Hospital, New York City, on healthy children 

 whose parents brought them repeatedly to the hospital) and kindly given 

 to the writer for this study. In this series, observations are especially 

 abundant at 1, 1.5, and 2 months (47, 170, and 30 cases respectively). 



4. Grover (1915) data. Boys only among out-patients of the Children's 

 Hospital, Boston, and visitors at milk stations. No clothing. Chest mea- 

 sured at level of nipples, midway between inspiration and expiration. 

 Length measured on graduated board. From 2 to 5 at each month of age. 



5. Benedict and Talbot (1920) data. (See No. 3, p. 9.) One to 6 

 individuals at the various months. 



