A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . strates an example of this was made for Mr. W. T. Schaller of the U. S. Geological Sur-vey and the subject was a Bruce purchase, a group of thin tourma-line crystals confusedly developed, terminated ; with white prismsand pink cappings. It makes an admirable demonstration of theprocess, though producing a rather odd whitish effect. The qualifications of a good collector, in any department ofscience or art, presupposes an excelle
A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . strates an example of this was made for Mr. W. T. Schaller of the U. S. Geological Sur-vey and the subject was a Bruce purchase, a group of thin tourma-line crystals confusedly developed, terminated ; with white prismsand pink cappings. It makes an admirable demonstration of theprocess, though producing a rather odd whitish effect. The qualifications of a good collector, in any department ofscience or art, presupposes an excellent understanding of the sub-ject involved, and a personal faculty of comparison and discrimina-tion. Superadded to understanding and judgment, a kind of sen-sitiveness to beauty is indispensable for the best success, if theobjects of acquisition possess the charms of color and form. Inscientific collecting the scientific sense dcv^eloped into an appre-ciation, at least, of the varied aspects of a scientific topic are con-clusively of vital importance. A collector must have patience, per-severance, active and industrious designs upon dealers, his rivals,. l-H< o u if15 BEMENT COLLECTION 265 and the sources of production, which latter are, with the art col-lector, the bibliophite, the histriographer, etc., the centers of cul-ture ; and, with the scientific collector, the quarries, mines, and ac-cidents of nature. In mineral collecting there is obviously conjoined appreciationof beauty, and knowledge of form, and for the more comprehensivecollectors a recognition of the uses of a mineral, its phases, andvarieties, and the relations of a mineral to rocks as a rock constitu-ent, as well as the relations of minerals to each other in their asso-ciations, intergrowth, and pseudomorphism, and the varying habitof dififerent localities. The limitations of space usually preclude any collector, lessuniversal in his aims than a museum, from occupying his attentionwith all these aspects of
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912
