Chapter III. The Distribution of Sexes | 5344 |
Chapter XII. The Halicti: a Parasite | 5766 |
Chapter VIII. Parasites | 5716 |
Chapter IX. The Theory of Parasitism | 6612 |
Chapter X. The Tribulations of The Mason Bee | 7391 |
Chapter III. Another Prober (Perforator) | 6362 |
Chapter XVI. A Parasite of The Maggot | 6770 |