Fig. 7.
Drawing of Mars in November with Long. 156° on the meridian, shewing the ‘Mare Sirenum’ (the shaded sickle-shaped area), connected with a network of ‘canals’ shewing ‘spots’ or ‘oases’ at the intersections of the canals and a system of spherical triangles as the form of the mesh-work.—From ‘Mars,’ by Perceval Lowell.
Fig. 8.
Drawing of Mars as seen on November 18th, 1894 (Long. 325° on the meridian) by Mr. Perceval Lowell at the Flagstaff Observatory, Arizona, U.S.A., shewing ‘twin’ or ‘double’ canals, connected northwards with the ‘Mare Icarium.’ The two figures here reproduced only give a small portion of the system of canals, oases and seas of the planet Mars, mapped by Mr. Lowell.
18. The Investigation of the Human Mind.
In such a desultory survey as that on which I have ventured, of Man’s kingdom and its dangers, it occurs to me to mention another area upon which it seems urgent that the activities of nature-searchers should be immediately turned with increased power and number. The experimental study of his body and of that of animals has been carried far and with valuable results by inquiring Man. But a singularly small amount of attention has as yet been given to the investigation of Man’s mind as a natural phenomenon and one which can be better understood to the immense advantage of the race.