Terms of Auxology. — Biickman and Bather. 45 
0peq>ixo5, derived from fipetpos, the unborn or new-born 
young of men or other animals. 
3 Neanic. Hyatt's term "nealogic" is said to be derived 
from veaXi'js and \6yos. If such a compound were possible it 
would be "nealologic;" but, as before, the latter half is 
superfluous. Neavixos springs from the same root, and, being- 
congruous with the other terms, is the obvious word to employ. 
4 Ephebic. The word "Ephebolic" lias greatly puzzled us. 
We can only explain it as a corruption of "Ephebologic," but 
the "logic 1 ' is unnecessary, while the word eqtrjfiiKOS, the ad- 
jective of i'qj)jli<>5. gives the exact term required. 
5 Gerontic. The word "Geratologic" is stated by its author 
to be derived from ytpas: this, however, instead of denoting 
••old age." means "a gift of honour/ 1 There is a word yijpaS, 
with a genitive yi'jpcxroi used by very late authors, it is true: 
but even so there remains the unnecessary "-logic." The 
proper word to use is clearly yepovtinos. 
5a Catabatic. "Clinology" can only mean the science of 
bed-making, so "clinologic" cannot be used in tin- sense 
attributed to it by Hyatt. K ar a fiariKO 5 which we have chosen 
to replace it. means literally "affording an easy descent," and 
is the best word not already occupied that we can find. It 
should at least be readily understood. 
5b Hypostrophic. "Nostologic" is open to the same ob- 
jection as "Embryologies The word we suggest, derived 
from vnoarpoq)!), a recurrence or relapse, seems to convey the 
exact meaning with greater clearness. 
Definitions of the Terms. 
It is only possible to define these stages in ;i very general 
way. tor their characteristics vary greatly in the different 
classes of animals. It is moreover impossible to draw any 
hard and fast line between the successive stages, except in 
rare instances. The following definitions arc generalized 
from the evidence of those groups to which the principle- of 
auxology have already been applied. 
1 Embryonic. This stage includes all individual history 
from the ovum up to the time when the organism can lte re- 
ferred definitely to its class. This stage has been sub-divided 
by the American authors into protembryo, mesembryo, met 
embryo, neoembryo, typembryo and phylembryo. 
