96 



BUREAU OF AMEKICAN ETHNOLOGY 



P Lilsc-rcs plration ratio, accordimj to mjc — ("ontinued 

 PIMA 



[bull. 34 



The data show that up to the end of the fourth or fifth year the ratio 

 of pulse to respiration increases somewhat in all the groups with age; 

 this means that respiration suffers a relatively greater retardation 

 during this period than the heart beats. Among both the Apache 

 and the Pima the number of pulse beats to each respiration during 

 the first year is higher in the male children. After that age the con- 

 ditions, with some exceptions, remain the same among the Pima, but 

 are reversed among the Apache, the number of pulse beats to every 

 respiration being greater in the girls than in the boys ; the number of 

 cases, however, is not sufficient to justify definite conclusions.'' 



Teetli. — Among the San Carlos Apache the youngest child with one 

 or more teeth was a girl in whom both lower middle incisors appeared 

 at 2^ months, and among the Pima a girl who had both lower median 

 incisors fairly developed at 4 months and 13 days. Among the 

 Apache the oldest infant without teeth was a girl of 7 months, and 

 among the Pima a boy of 7 months and 20 days. In general, the 

 appearance of the first lower middle incisors takes place at about the 

 same age as in whites (5f to 6^ months, D.).'' 



The upper median incisors follow the lower and appear in whites at 

 from 7 to Ih months (D.) ; among the Apache the youngest child in 

 which both these teeth were erupted was 7 months and 20 days, among 

 the Pima 7 months and 17 days, but in both children the teeth had 

 been out for some days. Delayed eruption of these teeth is rare 

 among the Apache, but seems to be frequent among the Pima; the 

 oldest subjects in whom the eruption of the upper median incisors had 

 not taken place were a 12 i months Apache girl and a Pima girl of 

 the same age. 



a Compare table Pulse-respiration ratios, in relation to stature, p. 105. 



ftDaffnor F.. Pas W.Tchstum des Mcnsciien. 2d ed., Leipzig, 1902, 17,5-170. D. = Dafiner. Compare 

 also with Welcker; Arch.f. Anthropol., i, 114, 



