To discover whether some little insects, or phosphoric worms, might not be the cause of it, the flowers were carefully examined even with a microscope, without any such being found. From the rapidity of the flash, and other circumstances, it might be conjectured, that there is something of electricity in this phaenomenon. It is well known, that when the _pistil_ of a flower is impregnated, the _pollen_ bursts away by its elasticity, with which electricity may be combined. But M. Haggren, after having observed the slash from the Orange-lily, the _anthers_ of which are a considerable space distant from the _petals,_ found that the light proceeded from the _petals_ only; whence he concludes, that this electric light is caused by the _pollen_, which in flying off is scattered upon the _petals._ Obser. Physìque par M. Rozier, Vol. XXXIII. p. iii. P. 153. _Addition to Avena._ The following lines were by mistake omitted; they were designed to have been inserted after l. 102, p. 153. Green swells the beech, the widening knots improve, So spread the tender growths of culture'd love; Wave follows wave, the letter'd lines decay, So Love's soft forms neglected melt away. P. 157. _Additional note to Bellis._ Du Halde gives an account of a white wax made by small insects round the branches of a tree in China in great quantity, which is there collected for economical and medical purposes: the tree is called Tong-tsin. Description of China, Vol. I. p. 230. _Description of the Poison-Tree in the Island of JAVA. Translated from the original Dutch of_ N. P. Foerich. This destructive tree is called in the Malayan language _Bohon-Upas,_ and has been described by naturalists; but their accounts have been so tinctured with the _marvellous,_ that the whole narration has been supposed to be an ingenious fiction by the generality of readers. Nor is this in the least degree surprising, when the circumstances which we shall faithfully relate in this description are considered.