Chapter III. The Distribution of Sexes | 4500 |
Chapter XII. The Halicti: a Parasite | 4957 |
Chapter VIII. Parasites | 4935 |
Chapter IX. The Theory of Parasitism | 5841 |
Chapter X. The Tribulations of The Mason Bee | 6453 |
Chapter III. Another Prober (Perforator) | 5565 |
Chapter XVI. A Parasite of The Maggot | 6051 |