This volume contains a treatise on some of the insects injurious to vegetation, with information on a wide array of different insects, their natural histories, life-cycles, anatomies, and much more. Written in clear, concise language and containing a wealth of interesting and useful information, this text constitutes a must-have for serious farmers and those with a keen interest in the topic. The chapters of this book include: 'Insects Defined', 'Brain and Nerves', 'Air-Pipes and Breathing-Holes', 'Heart and Blood', 'Insects are Produced from Eggs', 'Metamorphoses', 'Examples of Complete Transformation', 'Partial Transformation', 'Larva, or Infant State', 'Pupa, or Intermediate State', 'Adult, or Winged State', etcetera. We are proud to republish this vintage text, now complete with a new and specially commissioned introduction on farming.