4. Wolpert's revolving wheel increases the moisture but slightly. 5. The Russian tea machine and the steam pulverizer (atomizer) are effective but only for a short time. 6. Wet hand towels suspended in a room are insufficient. 7. Of all the methods tested, the most efficient seemed to be to hang up a number of wet cloths on a winch or some contrivance that permits of turning them, so as to hasten their giving out moisture to the air.--_Med. Zeitung_. * * * * * [The following article is from the June number of the _American Naturalist_, edited by Prof. A. S. Packard, Jr., and Prof. E. D. Cope. Published by McCalla & Stavely, Philadelphia, Pa.] THE DEVELOPMENTAL SIGNIFICANCE OF HUMAN PHYSIOGNOMY. [Footnote: Abstract of a lecture delivered before the Franklin Institute of Philadelphia, Jan. 20.1881, in exposition of principles laid down in The Hypothesis of Evolution, New Haven, 1870, p. 31.] By E. D. COPE. The ability to read character in the form of the human face and figure is a gift possessed by comparatively few persons, although most people interpret, more or less correctly, the salient points of human expression. The transient appearances of the face reveal temporary phases of feeling which are common to all men; but the constant qualities of the mind should be expressed, if at all, in the permanent forms of the executive instrument of the mind, the body. To detect the peculiarities of the mind by external marks has been the aim of the physiognomist of all times; but it is only in the light of modern evolutionary science that much progress in this direction can be made. The mind, as a function of part of the body, partakes of its perfections and its defects, and exhibits parallel types of development. Every peculiarity of the body has probably some corresponding significance in the mind; and the causes of the former are the remoter causes of the latter. Hence, before a true physiognomy can be attempted, the origin of the features of the face and general form must be known. Not that a perfect physiognomy will ever be possible. A mental constitution so complex as that of man cannot be expected to exhibit more than its leading features in the body; but these include, after all, most of what it is important for us to be able to read, from a practical point of view. [Illustration: FIG. 1.--Section of skull of adult orang-outang _(Simia satyrus)_. FIG. 2.--Section of skull of young orang, showing relatively shorter jaws and more prominent cerebral region.] The present essay will consider the probable origin of the structural points which constitute the permanent expression. These may be divided into three heads, viz.: 1. Those of the general form or figure. 2. Those of the surface or integument of the body, with its appendages. 3. Those of the forms of the head and face. [Illustration: FIG. 3.--Figure of infant at birth; _a_, front of face. (The eye is too far posterior in this figure.)]