Chapter III. The Distribution of Sexes | 5101 |
Chapter XII. The Halicti: a Parasite | 5494 |
Chapter VIII. Parasites | 5484 |
Chapter IX. The Theory of Parasitism | 6360 |
Chapter X. The Tribulations of The Mason Bee | 7107 |
Chapter III. Another Prober (Perforator) | 6090 |
Chapter XVI. A Parasite of The Maggot | 6546 |