Thus trunks of the palm trees on which are made notches or perforations to extract the sweet sap that oozes from them. The trunks of Dragoniers (Drocoena) on which should have been practised these punctures for a time more or less remote. Examples of punctures more or less entirely grown over on the trees whose wood is very different from that of indigenous trees, such as the very soft woods of Baobab, the Papayers, and on the very hard woods as iron wood, ebon, etc. 2º The excrescences and other anomalies of the developement of these woods, by knowing exactly the tree on which they have been observed or gathered. 3º The parasitical plants inserted on the trunks or roots, which bear them, such as the loranthus, viscum, and other parasites on the branches, the Rafflesia hyduora, balanophara on the roots; these samples, showing the parasitical plants still fixed on a portion of the plant which nourishes them, ought to be preserved dry for the ligneous species, in alcohol, for the herbaceous or pulpy species. 4º Monstruosities or anomalies of structure of flowers or exotic fruits, preserved in alcohol. _Fossil vegetables._--The collections of this kind at the museum (for several years) have greatly increased, and the researches of travellers and correspondents of the establishments will soon give them still more importance. Up to this present time, these collections comprehend, almost entirely, the fossil vegetables of Europe; yet it is known that the soils that produce them are found in the most remote parts of the world, and the comparison of fossils coming from great distance would be of great interest for geological theories. Thus, coal-land, so rich in fossil plants in Europe, is excavated at a great number of points in North America, in the East Indies, in China, and New-Holland, and is found, without doubt, in other places; the mines of the United States have been worked with care for the fossils which they contain, and have already supplied our galleries with numerous specimens. It must not be forgotten that to classify exactly these fossils considerable number of specimens is frequently necessary and that a collection of the varieties found together in the same soil is often one of the most important results; that consequently, especially in distant localities, the greatest number of specimens possible should be collected and sent. Specimens should especially be procured which present the stamps of leaves entire and perfectly marked, the trunks which show still the carbonised bark which covered them, and the impression of the insertions of the leaves that it bore, besides characterised fruits, such as those analogous to the cones of the pines, the fruits of the palm trees, etc.