Old stocks are as prosperous as any, as long as they are healthy, yet they are more liable to become diseased.
When no apiary from which to purchase can be found, but where the disease _has made_ its appearance, and you are necessitated to purchase from such, or not at all, you cannot be too cautious about it. It would be safest in this case to take none but young swarms, as it is not so common for them to be affected the first season, yet they are not always exempt. But here, again, you may not be allowed to take all young stocks; in which case let the weather be pretty cold, the bees will be further up among the combs, and give a chance to inspect the combs. At this season, say not earlier than November, all the healthy brood will be hatched. Sometimes, a few young bees may be left that have their mature shape, and probably had been chilled by sudden cold weather--these are not the result of disease, the bees will remove them the next season, and no bad results follow. In warm weather a satisfactory inspection can be had no other way, but by the use of tobacco smoke. Be particular to reject all that are affected with the disease in the least; better do without, than take such to begin with. (A full description has been given of this disease in another place.)
A neighbor purchased thirteen stock-hives; six were old ones, the others swarms of the last season. As the old hives were heavy, he of course thought them good; either he knew nothing of the disease, or took no trouble to examine; five of the six old ones were badly affected. Four were lost outright, except the honey; the fifth lasted through the winter, and then had to be transferred. He had flattered himself that they were obtained very cheaply, but when he made out what his good ones cost, he found no great reason, in this respect, for congratulation.
Another point is worthy of consideration: endeavor to get hives as near the right size as possible, _viz._, 2,000 cubic inches; better too large than too small. If too large, they may be cut off, leaving them the proper size. But yet, it often makes an ungainly shape, being too large square for the height. As the shape probably makes no difference in the prosperity of the bees, the appearance is the principal objection, after being cut off.