In arranging the spoils of these excursions for the cabinet, a little care and taste are required. We will suppose you to possess one of those many-drawered cabinets which can now be obtained so cheaply. Begin at the bottom, so that the lowest drawers represent the lowest-seated and oldest rocks, and the uppermost the most recent. If possible, have an _additional_ cabinet for _local_ geology, and never forget that the first duty of a collector is to have his own district well represented! A compass of a few miles will, in most cases, enable him to get a store of fossils or minerals which cannot well be obtained elsewhere. Supposing he is desirous of having the geological systems well represented, he can always do so by the insertion of such paragraphs as those which appear in the Exchange columns of 'Science Gossip.' It is by well and thoroughly working separate localities in this fashion that the science of geology is best advanced. You hear a good deal about the "missing links," and it is an accepted fact that we, perhaps, do not know a tithe of the organic remains that formerly enjoyed life. Who knows, therefore, but that if you exhaust your district by the assiduous collection of fossils, you may not come across such new forms as may settle many moot points in ancient and modern natural history? The genuine love of geological study is always pretty fairly manifested in a student's cabinet. Science, like charity, begins at home. It impels a man to seek and explain that which is nearest to him, before he attempts the elucidation of what really lies in another man's territory! It is not necessary that the student should waste time in the field about naming or trying to remember the names of fossils, &c., on the spot. That can be best done at home, and the pleasure of "collecting" can thus be spun to its longest length. Box them, pack them well (or all your labour is lost), and name them at home. Or supposing you do not possess books which can assist you in nomenclature, carry your fossils or minerals, just as you found them, to the nearest and best local museum, where you will be sure to see the majority of them in their proper places and with their proper names. Copy these, and when you arrange your specimens in the cabinet, either get printed cards with the following headings-- _Genus______________________________________ _Species____________________________________ _Formation__________________________________ _Locality___________________________________