Nature has provided the Queen of Bees with the power of multiplying her species, and of providing against any casualty which in so numerous a state may frequently happen. That all-seeing eye that neither slumbers nor sleeps, but constantly superintends alike the affairs of insects and of men, has, doubtless, long beheld the shameful neglect of man, which is the main cause of the distress of the hive, and which _forces_ it to swarm. Let man, then, remedy the distress and mischief which he occasions, by _preventing it_. It is the Queen-Bee that emigrates; were she not to lead, none would lead; nor would any follow were another than the Queen to lead, to seek and to settle in some place more congenial to them than an over-heated, over-stocked, though rich hive. She well knows she cannot live in a state subjected to a suffocating heat, amidst an overgrown population. So she leaves the royal cradle, impregnated with the royal larva, and withdraws from the hive, reluctantly, one may suppose, though accompanied by thousands of her subjects. The Queen-Bee leads the swarm to seek a place of comfort, and to establish another home, where not one cell nor drop of honey exists. To establish the truth of these assertions, and to prove the utility of ventilation and of the thermometer, in regulating the degree of ventilation in the management of Bees, I will now give my reader an account of some interesting experiments that I made in 1826, and then add a few extracts from my thermometrical journal of that summer; which in fact guided me in those experiments, for without the assistance of my thermometer I could not have made them; from which, taken together, it will, I think, be sufficiently evident that ventilation and the thermometer are highly necessary,--are alike important,--in short, are _indispensable_ in the humane management of Honey-bees.