Of these some are valuable for the supply of pabulum they afford Bees early in spring; as _the white alyssum, broom, crocus, furze, hazel, laurustinus, mezereon, ozier, plane-tree, poplar-tree, snowdrop, sycamore-tree, the willow-tree, &c._ Others again are valuable on account of the lateness of the season that Bees derive assistance from them; as _the golden-rod, heath, ivy, laurustinus, mignionette, ragweed, &c._ Some abound with honey; as _borage, buckwheat, burnet, coleseed, currant and gooseberry-trees, heath, leek, mignionette, mustard, onion, thyme, the blossoms of apple, apricot, cherry, nectarine, pear, and plum-trees, and the leaves of those trees remarkable for what is called honey-dew, as the aspin, blackberry, laurel, laurustinus, lime, maple, oak, plane, poplar, and sycamore-tree._ Among those that are rich in pollen, may be classed--_the arbutus, ash, blackberry, box, chesnut, cypress, elder, laurel, marsh-mallow, turnip, &c._ The cultivation of some of the most valuable of these is too-limited to be particularly advantageous to Bees, as _alyssum, borage, burnet, golden-rod, laurustinus, mezereon, mignionette, &c._ The most extensive and lasting Bee-pasturage in this country is _clover, heath_, and in my own immediate neighbourhood _mustard_. In short, every one of the flowers, &c. mentioned in the foregoing catalogue, and others innumerable, are in their turns resorted to by Bees, and of course are more or less advantageous to them. CHAPTER XVI. HONEY-COMB. To excite our admiration of the industry and ingenuity of Bees, we need only take into our hands a piece of _honey-comb_, and examine it attentively. Its neatness, its beauty, its construction, the similarity and exact proportion of its double web of cells, for a honey-comb is, in fact, a web of cell-work on both sides, are most admirable, and calculated to lead the contemplative mind from nature's work up to nature's God. When a swarm of Bees is put into a hive, or into a box, they immediately set about constructing combs in it, and proceed in their building work with a rapidity that is truly astonishing. The cells that are opposite to each other are advanced alike: the work on one side is just as forward and in the same state as that on the other side. In the cells first finished the Queen begins to deposit her eggs. In an incredibly short space of time, an immense number of cells is completed, and the Bees store pollen, farina, or Bee-bread, (which are so many names for the same substance) in some of those not already occupied by eggs, and in others honey soon becomes visible: all is activity, industry, and apparently happiness. But, to come to particulars:--