20 Latent and Semi-Latent Characters. 
(Fig. 2, p. 34), the apex of which however does not 
become very distant from that of the half-curve. 
Third case. The characters are first expressible by 
half curves because they are minus variants; but after 
isolation the curve very soon becomes a two-sided one 
with a new apex. The new variety reaches its full de- 
velopment and is maintained without further selection. 
A schematic presentation of the conflict between two 
antagonistic characters is given below : 
The normal character is: The anomaly is: 
I. active latent. 
II. active semi-latent. 
III. An equilibrium is maintained. 
IV. semi-latent active. 
V. latent active. 
I do not of course suppose that no further cases are 
possible, that there may not for example be various stages 
of semilatency. The facts at our disposal do not admit of 
any such definite statement. On the other hand it must 
be stated that the scheme I have given covers the cases 
which have been so far collected ; we shall soon see large 
numbers of examples of the main cases, whereas of others 
I have not yet found any. 
In the above table I obviously represents the normal, 
original species, and V the slightly variable and constant 
variety derived from it. The three other numbers repre- 
sent the three intermediate forms of which the two first 
(II and III) correspond to actuality whilst the fourth 
merely follows from the scheme. I am rather doubtful 
as to its occurrence in nature. 
It is necessary to introduce special names for the 
first two intermediate forms. I shall therefore call them 
both intermediate races, one of which- No. II I shall 
