GROWTH ON AGE 227 



Tables giving the values for characters other than body weight, 

 linked with age — tables 151 and 157. 



For the most part the tables are preceded by a slight descriptive 

 heading only. Reference is made to the corresponding charts in 

 connection with which all the details concerning them have been 

 noted. 



, Tables showing the increase in the weight of the entire body with 

 age. 



Growth before birth — Stotsenburg ('15) tables 118 and 119, 

 chart 20. 



Postnatal growth in body weight is recorded in tables 157, 

 charts 21 and 22, and 157 a. 



The body weights in table 157 are those which were used for our 

 so-called ^^ standard curve of growth^' as shown in charts 21k and 

 22a. 



The data in table 157a are those on which the graph pubhshed 

 by Greenman and Duhring ('23) is based. They are here tabu- 

 lated because they represent the age-body weight relations now 

 found in the colony of The Wistar Institute and in general are 

 decidedly above those used for our standard curve of growth. 

 These high values are the result of special care and feeding, 

 coupled with selection, and surpass those commonly obtained 

 under the usual conditions. 



Tables giving characters other than body weight tvhich depend 

 primarily on age. 



Table 157 gives the percentage of water in the brain and in the 

 spinal cord for each sex from birth to 365 days. These values 

 have been computed by formulas (47)-(49a) and (50)-(52d) 

 The graphs corresponding to these data for the males are given 

 in chart 55. 



Table 151 gives the values for the weight of the thymus — sexes 

 combined — from birth to 400 days. The values have been 

 computed by formulas (45) and (46). The graph corresponding 

 to these data is given in chart 48. 



The five tables 144-148 which follow have been worked out 

 on the basis of body length by the use of the appropriate formulas. 

 The details touching the organs represented, as well as the cor- 

 responding graphs, are given earlier in this chapter. 



