Success in the operation certain, 202. New colonies may be thus formed in ten minutes. Natural swarming wholly prevented. If attempted by the bees cannot succeed. How to remove the wings of the queens, 203. Precaution against loss of queen by old age. Advantages of this, 204. Certainty and ease of artificial swarming with the new hive. After-swarms prevented if desired, 205. Large harvests of honey and after-swarming impracticable. Danger of too rapid increase of stocks. Importance of understanding his object, by the bee-keeper, 206. The matter made plain, 207. Apiarians dissuaded from more than tripling their stocks in a year. Tenfold increase of stocks attainable, 209. Certain increase, not rapid, most needed. Cautions concerning experiments, 210. Honey, largest yield obtained by doubling colonies. The process, 211. May be done at swarming time. Bees recognize each other by smell, 213. Importance of following these directions illustrated. Process of uniting swarms simplified by the new hive, 214. Very rapid increase of colonies precarious. Mode of effecting the most rapid increase, 215. Nucleus system, 217. Can a queen be raised from any egg? Two sorts of workers, wax workers and nurses, 218. Probable explication of a difficulty, 219. Experimenting difficult work. Swarming season best time for artificial swarming. Amusing perplexity of bees on finding their hive changed, 220. Perseverance of bees. Interesting incident illustrating it, 221. Novel and successful mode of forming nuclei, 223. Mode of managing nuclei, 225. Danger of over-feeding. Increasing stocks by doubling hives, 229. Important rule for multiplying stocks. How to direct the strength of a colony to the rearing of young bees, 230. Proper dimensions of hives. Reasons therefor, 231. Easy construction of the improved hive. Precaution of queen bees in their combats, 234. Reluctance of bees to receive a new queen. Expedient to overcome this. Queen nursery, 235. Mode of rearing numerous queens, 237. Control of the comb the soul of good bee-culture. Objection against bee-keeping answered, 233. No "royal road" to bee-keeping. A prediction, 239. CHAPTER XI.