188 On the Nature of Fertilization and Sex. 
confusion is one that arises quite apart from the hypothesis 
outlined above. The use of androplasmic and gynoplasmic and of 
male and female , etc., to distinguish between the qualities of the 
gametes and those of the individual (“ sporophyte ” of higher 
plants) is an attempt to solve the difficulty and make discussion of 
the problem possible. 
The present paper is, to a large extent, the outcome of 
discussions with my wife (Dr. M. C. Rayner) and it is not possible 
to acknowledge too fully the extent to which it is indebted to her 
helpful and stimulating encouragement and criticism at all stages. 
At the same time, the writer is prepared to accept full responsi¬ 
bility for the unorthodoxy of many of the views put forward. 
It is felt that anything that arouses controversy is to the good, 
whether the ultimate result be to set up new, or establish more 
clearly the current views. 
- In conclusion, it is hoped that the fact that the writer is at 
present engaged in other than academic duties may excuse some of 
the imperfections of the article. 
