THE QUEEN BEE. THE DRONE. THE WORKER, 30. Knowledge of facts relating to them, necessary to rear them with profit. Difficult to reason with some bee-keepers. Queen bee the mother of the colony--described, 31. Importance of queen to the colony. Respect shown her by the other bees. Disturbance occasioned by her loss, 32. Bee-keepers cannot fail to be interested in the habits of bees, 33. Whoever is fond of his bees is fond of his home. Fertility of queen bees under-estimated. Fecundation of eggs of the queen bees, 34-36. Huber vindicated. Francis Burnens. Huber the prince of Apiarians, 35. Dr. Leidy's curious dissections, 37. Wasps and hornets fertilized like queen bees. Huish's inconsistency, 38. Retarded fecundation productive of drones only. Fertile workers produce only drones, 39. Dzierzon's opinions on this subject, 40. Wagner's theory. Singular fact in reference to a drone-rearing colony. Drone-laying queen on dissection, unimpregnated. Dzierzon's theory sustained, 41. Dead drone for queen, mistake of bees, 43. Eggs unfecundated produce drones. Fecundated produce workers; theory therefor, 44. Aphides but once impregnated for a series of generations. Knowledge necessary for success, Queen bee, process of laying, 45. Eggs described. Hatching, 46. Larva, its food, its nursing. Caps of breeding and honey cells different, 47. Nymph or pupa, working. Time of gestation. Cells contracted by cocoons sometimes become too small. Queen bee, her mode of development, 48. Drone's development. Development of young bees slow in cool weather or weak swarms. Temperature above 70 deg. for the production of young. Thin hives, their insufficiency. Brood combs, danger of exposure to low temperature, 49. Cocoons of drones and workers perfect. Cocoons of queens imperfect, the cause, 50. Number of eggs dependent on the weather, &c. Supernumerary eggs, how disposed of, 51. Queen bee, fertility diminishes after her third year. Dies in her fourth year, 52. Drones, description of. Their proper office. Destroyed by the bees. When first appear, 53. None in weak hives. Great number of them. Rapid increase of bees in tropical climates, 54. How to prevent their over production. Expelled from the hive, 55. If not expelled, hive should be examined. Provision to avoid "in and in breeding," 56. Close breeding enfeebles colonies. Working bees, account of. Number in a hive, 58. All females with imperfect ovaries. Fertile workers not tolerated where there are queens, 59. Honey receptacle. Pollen basket. The sting. Sting of bees, 60. Often lost in using. Penalty of its loss. Sting not lost by other insects. Labors of workers, 61. Age of bees, 62. Bees useful to the last, 63. Cocoons not removed by the bees. Breeding cells becoming too small are reconstructed. Old comb should be removed. Brood comb not to be changed every year, 64. Inventors of hives too often men of "one idea." Folly of large closets for bees, 65. Reason of limited colonies.