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 Mar., 1908 label to fit on a corner of the tray with ears or laps to paste on the sides of the tray. The accompanying sketch and photos will show how well this overcame all objec- tions. There is sufficient room for all necessary information on the label, it is easy to make, is permanent when once pasted in place, and most important of all does not interfere with the eggs is any way, and does not detract from the general ap- pearance of the display. I have given these labels a thoro trial and they seem to fill the bill perfectly. For use with the oblong trays a label pasted across the front or back of the tray, leaving the exposed portion of the tray square, has proven the most satisfactory; but where it is necessary to conserve space this label is practi- cally useless, as it takes up so much room. Probably every one who has a collection has the eggs arranged to conform to the A. O. U. nomenclature, which is without question the best plan of arrange- ment. It is also very advantageous to arrange the eggs so that the families or genera may be separated from each other. Little strips of wood about a quarter of an inch wide and the same hight as the tray, placed between the trays of different genera, accomplish this neatly and easily and thus show at a glance thedifferent types of coloration in the family or genus. These strips can only be used [ - where the trays do not exactly fit the drawer, but as it is very seldom that a drawer is found that will hold acer- - - rain number of trays without any waste space this difficulty is of very little moment. On these strips may  be pasted the family and generic  names if desired. If one wishes to have drawers fit  the trays exactly, for trays of the size mentioned above, a drawer 24 inches -.  square inside is the most convenient  size, as 24 is exactly divisible by 3, 4, 6 and 8. Without any question the data at_CORNER OF A CABINET DRAWER SHOWING HOW iN- eompanying any collection of eggs is coNsPiCUOUS THE TRIANGULAR LABELS ARE the most important feature of the collection and there are many methods of housing the data slips. The old-fashioned way was simply to lay the slips loosely in the drawer with the eggs, which is not only dangerous to the eggs, but also leaves many opportunities to lose the data, without which the sets are useless. A book composed of large envelopes into which the data may be slipped works fairly well, but has many disadvantages. The best idea I have seen in this line is one which originated with the well known oologist, Fred M. Dille, and which covers every requirement fully. It is no less than a modification of the vertical card system, in which a large durable envelope with a data blank printed upon it is used instead of the cards. The salient points of each data are written on the envelope, the data enclosed in the envelope and then filed in vertical card files according to the A. O. U. number. The advantages of this system are many: by repeated handling the original data becomes soiled and often mutilated (especially is this true in pub- lic collections) while the envelopes if made of durable manila paper will stand a great deal of handling without injury, and even if they are worn out a new one may be copied from the original without injury to the set represented. Again, as nearly every collector has a different sized data blank it would be practically ira-