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.