The Progress of the Race 
at the expense of the working type of its 
race," 
Among the bees, however, which are 
somewhat too arbitrarily termed the ‘‘soli- 
tary Apide,” the social instinct already is 
smouldering, like a flame crushed beneath the 
overwhelming weight of matter that stifles 
all primitive life. And here and there, in 
unexpected directions, as though reconnoit- 
ring, with timid and sometimes fantastic 
outbursts, it will succeed in piercing through 
the mass that oppresses it, the pyre that 
some day shall feed its triumph. 
If in this world all things be matter, this 
is surely its most immaterial movement. 
Transition is called for from a precarious, 
egotistic, and incomplete life to a life that 
1 The humble-bees, for instance, have the Psithyri as 
parasites, while the Stellites live on the Anthidia. “As 
regards the frequent identity of the parasite with its 
victim,” M. J. Perez very justly remarks in his book, 
“The Bees:” “One must necessarily admit that the two 
genera are only different forms of the same type, and are 
united to each other by the closest affinity. And to 
naturalists who believe in the theory of evolution this 
relationship is not purely ideal, but real. The parasitic 
genus must be regarded as merely a branch of the forag- 
ing genus, having lost its foraging organs because of its 
adaptation to parasitic life.” 
321 x 
