302 Miscellaneous. agency under several aspects, especially in the formation of extensive sheets of rock. It now has become proper to bring to a close these few observa-tions, or rather this enumeration of heads of Natural-History sub-jects, by expressing a confident hope that this compilation will find many and well-qualified interpreters, and will be useful to geologists in general. MISCELLANEOUS. On some Points in the Anatomy of the Genus Fistulina. By J. DE Seynes. The species of the higher Fungi in which several forms of repro-ductive bodies have been indicated are still few in number. Three years ago I pointed out, in Fistulina bufflosso'ides, Bull., some small sporiform bodies analogous to those to which, in many species of Fungi, M. Tulasne has ascribed the part of spore-producers and given the name of conidia. Further investigations on this subject have enabled me to make several observations, which I request permission to lay before the Academy. The parenchyma of a Fistulina is composed of elongated cells of different calibre, increasing in size towards the interior. This tissue is traversed by some very long and generally narrower cells, filled with a red and not granular liquid, which becomes solid and brittle when dried. The transverse septa are so far apart that these cells might be taken for true vessels. I have every reason to believe that it is the same system of organs to which the name of latici-ferous vessels has been given in the milky Agarics ; I shall call them simply reservoirs of proper juice. I have observed them in many not milky Agarics and in a Clavaria (C. aurantia, Pers.). In Fistulina the cells which form them do not originate entirely in the inter-cellular spaces. Upon an ordinary cell of the parenchyma, or at its extremity, a csecal process makes its appearance, filled with a yellow granular substance more abundant than that which also occurs in the mother cell ; this substance appears to condense into a red liquid, which occupies the bottom of the csecal cell. The latter elongates, and soon a transverse septum is formed near the point where it springs from the mother cell. This septum of course in-terrupts all direct communication with the mother cell, and it is even probable that subsequently there is a solution of continuity between these two cells; for when the reseivoirs of proper juice are examined after they have arrived at their full development, they can no longer be found in direct connexion with the ordinary cells of the parenchyma. Near the upper surface of the pileus of Fistulina, these reservoirs, which are sometimes ramified, take a tortuous and rather spiral direction, which does not extend to the cells of the surrounding tissue ; they are very numerous at this part, and in the dry fungus give to this subepidermic portion of the parenchyma the appearance of a black line.