LITERATURE OF THE DAY.

The Atlantic Islands as Resorts of Health and Pleasure. By S. G. W. Benjamin. New York: Harper & Brothers.

Invalids and pleasure-seekers have here a guidebook to the summer and winter resorts of the North Atlantic, from the desolate rocks called the Magdalen Islands in the Gulf of St. Lawrence to the ever-bland Madeira and the over-bright Bahamas. The varied company of the isles embraces even Wight, where Cockney consumptives go to get out of the mist, and the Norman group consecrated to cream and Victor Hugo. The author's good descriptive powers are assisted by a number of drawings, many of which are finely done and well discriminate the local character of the different places, latitudes and circumstances of life. He does not appear to be much of a valetudinarian himself, or he would hardly have been able to venture on and report for our benefit so wide a range of travel and experience; but his preference obviously is for the island most thoroughly tempered to the needs of an enfeebled constitution, and which welcomes most wooingly those whose first craving is to keep alive—Madeira. Such of us as associate their earliest recollections of the name with the annual cask of wine will read with interest that though the wine, thanks to the oidium or some malady of that sort, is a thing of the past, the spot retains many other charms ample to justify a trip to its shores by a more roundabout way than the slow and direct or costly and circuitous routes laid down by Mr. Benjamin. Teneriffe ranks close to Madeira, and the Valley of Orotava, scooped out of the flank of the famous peak, is recommended as simply perfection for sufferers from "pulmonary complaints, rheumatism or neuralgia," and beneficial even in Bright's disease. The thermometer in this happy valley stops at fifty-eight degrees in winter, and averages from sixty-eight to seventy-two degrees in summer. Should you find this temperature too inclement, you can descend to the port at its mouth and luxuriate in a range of sixty-four to eighty degrees. Where we write the figure at this moment is ninety degrees in the shade, and those semi-tropical outposts of the anciently-known world seem arctic.

Bermuda, New York's onion- and potato-garden, is presented to us in a less fascinating light, owing possibly, in part, to the fact that Mr. B. does not like onions, and was nearly stifled on his return by the odor of that nutritious esculent under battened hatchways. But he sees a great deal to delight sound travellers, and objects mainly in behalf of the sick to the climate, which is only a modification of that of the continent, with an extra tempest or two thrown in. In protesting against the antiquated mode of landing maintained by Bermudan conservatism, he thinks a more modern, rational and convenient plan would be hooted down by the wharf-mob in the spirit of "Demetrius the coppersmith." We believe the Ephesian was a maker of silver images, though Alexander may have been actuated by a like motive in opposing Paul's proceedings as not good for trade.

Speaking of landing-places, that of Columbus is transferred, in a notable note on the Bahamas, from Cat Island to Watling's Island. The former has no lake, as the latter has; and Columbus insists on a lake. He also went in one day with oars around the north end—a feat impossible in one case and easy in the other. Watling, for this and other reasons dwelt on by English surveyors, is on the new maps rebaptized San Salvador, in rectification of euphony not less than of historic truth. If now equally successful inquiry could be brought to bear on the identity of the Discoverer's bones, claimed alike by Hayti and Cuba, it would be an additional comfort to the lovers of fact.

Steam-service is steadily growing more frequent, regular and expeditious, and the next generation of Americans will doubtless pack their portmanteaus as lightly for the Canaries, the Loffodens and the Galapagos as that now in being does for Appledore or Mount Desert. For individual health, relaxation or enjoyment, not more than for the general invigoration and well-being of the race, we need to be on easier terms with the sea. The old maritime spirit, so striking to the eyes of Burke, seems to have died out from among us. If we are to have a brilliant and assured future, we must not look for it wholly to the land. It may not rise sheer, Britain- and Aphrodite-like, from the breast of ocean, but it must yet rest partly upon that most solid of supports, the ever-shifting wave.

The Principles of Light and Color. By Edwin D. Babbitt. New York: Babbitt & Co.

Were we to open this book about the middle we should be disposed to set it down, on the strength of its latter half, as a contribution to the literature of the Pleasantonian (or blue-glass) school of natural philosophy. This impression would be humored by the bluish tint of the paper upon which it is printed. But an inspection of the entire work would show that it is something more comprehensive and ambitious, not to say more interesting and suggestive. It is the product of a bold and original, if not exactly close and systematic, thinker—one who, with a longer and severer experimental training in the fields he has chosen for exploration, would command the respectful attention of leading scientific men. He begins with the reflection that, "in spite of the wonderful achievements of experimental scientists, no definite conceptions of atomic machinery, or the fundamental processes of thermal, electric, chemical, physiological or psychological action, have been attained." He proposes to remedy this failure, and to carry the natural sciences to their "basic principles." He proceeds to speculate with great ingenuity on the nature of light, the form, relations and movements of atoms, the action of electricity upon them, the constitution of the atmosphere, mode of creation of the solar system, and the rationale of chemical affinity. From these lofty regions he stoops to his conclusion in the new science of "chromo-therapeutics." He undertakes to define and explain the alleged effects upon mind, soul and body of all the colors of the spectrum. Among these colors he assigns the place of honor to blue, that tint emanating from the frontal portion of the brain in rays visible to certain finely-organized individuals, and being associated with the highest intellectual faculties. Red belongs to the opposite pole of the cerebral sphere, and holds special relations with the grosser part of man's abstract nature. In this mysterious region of inquiry he joins hands with some questionable allies, such as the Spiritualists, the phrenologists and the mesmerizers. The power of the clairvoyants he does not doubt. Indeed, he claims to have used it himself, and to have fattened on it, his present weight of one hundred and eighty pounds having been attained, he tells us, together with perfect health, by the judicious employment of "these subtler agencies." One is tempted to ask, in view of such a result, why waste time on the color-cure when the mesmeric system succeeds so admirably?