botanizing, particularly the neighbourhood of Bayonet Head, and the distant parts of Oyster Harbour.  At our former visit to this place he had searched in vain for that curious little plant Cephalotus follicularis, Br.,* but on this occasion he was more fortunate, for he found it in the greatest profusion in the vicinity of the stream that empties itself over the beach of the outer bay where we watered.  Of this he says:  “The plants of cephalotus were all in a very weak state, and none in any stage of fructification:  the ascidia, or pitchers, which are inserted on strong foot-stalks, and intermixed about the root with the leaves, all contained a quantity of discoloured water, and, in some, the drowned bodies of ants and other small insects.  Whether this fluid can be considered a secretion of the plant, as appears really to be the fact with reference to the nepenthes, or pitcher-plant of India,** deposited by it through its vessels into the pitchers; or even a secretion of the ascidia themselves; or whether it is not simply rainwater lodged in these reservoirs, as a provision from which the plant might derive support in seasons of protracted drought, when those marshy lands (in which this vegetable is alone to be found) are partially dried of the moisture that is indispensable to its existence, may perhaps be presumed by the following observations.  The opercula, shaped like some species of oyster, or escalop-shells, I found in some pitchers to be very closely shut upon their orifices, although their cavities, upon examination, contained but very little water, and the state of the weather was exceedingly cloudy, and at intervals showery; if, therefore, the appendages are really cisterns, to receive an elemental fluid for the nourishment of the plant in times of drought, it is natural to suppose that this circumstance would operate upon the ramified vessels of the lids, so as to draw them up, and allow the rain to replenish the pitchers.  Mr. Brown also, who had an opportunity in 1801 of examining plants fully grown, supposes it probable that the vertical or horizontal positions in which the opercula were remarked, are determined by the state of the atmosphere, at the same time that he thinks it possible that the fluid may be a secretion of the plant.  The several dead insects that were observed within the vases of cephalotus were very possibly deposited there by an insect of prey, since I detected a slender-bodied fly (ichneumon) within a closed pitcher, having evidently forced its passage under the lid to the interior, where an abundant store of putrescent insects were collected.  Whilst, therefore, these pitchers are answering the double purpose, of being a reservoir to retain a fluid, however produced, for the nourishment of the plant in the exigency of a dry season, as also a repository of food for rapacious insects, as in sarracenia, or the American pitcher-plant; it is also probable that the air, disengaged by these drowned ants, may be important and beneficial to the life of the Australian plant, as Sir James E. Smith has suggested, in respect to the last-mentioned genus, wild in the swamp of Georgia and Carolina.