We shall not criticize the work in detail, but shall rest satisfied with saying that the author has succeeded in his design of making the whole subject clear to any reader who will follow his lucid and systematic exposition. The plan of the work is simple, and the arrangement orderly and proper. A concise statement is given of the fundamental principles of electricity, and of the means of its artificial propagation. This includes, of course, a description of the various batteries used in telegraphing. Then follows a chapter upon electro-magnetism and its application to the telegraph. This prepares the way for a statement of the physical conditions under which the electrical current may be conveyed. The author then describes the instruments necessary for the transmission and recording of intelligible signs, under which general head of "Electric Telegraph Apparatus" the various telegraphic systems are made the subject of careful description. A chapter is given to the history of each system,—the Morse, the Needle, the House, the Bain, the Hughes, the Combination, and others of less note. These chapters are very complete and very interesting, embodying, as they do, the history of each instrument, the details of its use, and a statement of its capabilities. The system most used in America is the Combination system, the printing instrument of which is the result of an ingenious combination of the most desirable qualities of the House and Hughes systems. Of this fine instrument a full-page engraving is given, which, with Mr. Prescott's careful explanation, renders the recording process very clear.
The next division of the work relates to subterranean and submarine telegraphic lines. Of this the greater portion is devoted to the Atlantic cable, the great success and the great failure of our time. The chapter devoted to this unfortunate enterprise gives the completest account of its rise, progress, and decline that we have ever seen. It seems to set at rest, so far as evidence can do it, the mooted question whether any message ever did really pass through the submerged cable,—a point upon which there are many unbelievers, even at the present day. We think these unbelievers would do well to read the account before us. Mr. Prescott informs us, that, from the first laying of the cable to the day when it ceased to work, no less than four hundred messages were actually transmitted: one hundred and twenty-nine from Valentia to Trinity Bay, and two hundred and seventy-one from Trinity Bay to Valentia. The curious reader may find copies of all these messages chronologically set down in this volume. Mr. Prescott expresses entire confidence in the restoration of telegraphic communication between the two hemispheres. It may be reasonably doubted, however, if direct submarine communication will ever be resumed. Two other routes are suggested as more likely to become the course of the international wires. One is that lately examined by Sir Leopold M'Clintock and Captain Young, under the auspices of the British Government. This route, taking the extreme northern coast of Scotland as its point of departure, and touching the Faroe Islands, Iceland, and Greenland, strikes our continent upon the coast of Labrador, making the longest submarine section eight hundred miles, about one-third the length of the Atlantic cable. There is not a little doubt, however, as to the practicability of this route; and as the British Government has already expended several hundred thousand pounds in experimenting upon submarine cables, it is not likely that it will venture much more upon any project not holding out a very absolute promise of success. What seems more likely is, that our telegraphic communication with Europe will be made eventually through Asia. Even now the Russian Government is vigorously pushing its telegraphic lines eastward from Moscow; and its own interest affords a strong guaranty that telegraphic communication will soon be established between its commercial metropolis and its military and trading posts on the Pacific border. A project has also recently taken form to establish a line between Quebec and the Hudson Bay Company's posts north of the Columbia River. With the two extremes so near meeting, a submarine wire would soon be laid over Behring's Straits, or crossing at a more southern point and touching the Aleutian Islands in its passage.
Two of the chapters of this work will be recognized by readers of the "Atlantic" as having first appeared in its pages,—a chapter upon the Progress and Present Condition of the Electric Telegraph in the various countries of the world, and a description of the Electrical Influence of the Aurora Borealis upon the Working of the Telegraph. These, with a curiously interesting chapter upon the Various Applications of the Telegraph, and an amusing miscellaneous chapter showing that the Telegraph has a literature of its own, complete the chief popular elements of the volume. The remainder is devoted mainly to a technical treatise on the proper method of constructing telegraphic lines, perfecting insulation, etc. In an Appendix we have a more careful consideration of Galvanism, and a more detailed examination of the qualities and capacities of the various batteries.
As is becoming in any, and especially in an American, treatise upon this great subject, Mr. Prescott devotes some space to a detailed account of the labors of Professor Morse, which have led to his being regarded as the father of our American system of telegraphing. In a chapter entitled "Early Discoveries in Electro-Dynamics," he publishes for the first time some interesting facts elicited during the trial, in the Supreme Court of the United States, of the suit of the Morse patentees against the House Company for alleged infringement of patent. In this chapter we have a résumé of the evidence before the Court, and an abstract of the decision of Judge Woodbury. This leads clearly to the conclusion, that, although Professor Morse had no claims to any merit of actual invention, yet he had the purely mechanical merit of having gone beyond all his compeers in the application of discoveries and inventions already made, and that he was the first to contrive and set in operation a thoroughly effective instrument.
Mr. Prescott has produced a very readable and useful book. It has been thoroughly and appropriately illustrated, and is a very elegant specimen of the typographer's art.
Great Expectations. By CHARLES DICKENS. Philadelphia: T.B. Peterson & Brothers. 8vo.
The very title of this book indicates the confidence of conscious genius. In a new aspirant for public favor, such a title might have been a good device to attract attention; but the most famous novelist of the day, watched by jealous rivals and critics, could hardly have selected it, had he not inwardly felt the capacity to meet all the expectations he raised. We have read it, as we have read all Mr. Dickens's previous works, as it appeared in instalments, and can testify to the felicity with which expectation was excited and prolonged, and to the series of surprises which accompanied the unfolding of the plot of the story. In no other of his romances has the author succeeded so perfectly in at once stimulating and baffling the curiosity of his readers. He stirred the dullest minds to guess the secret of his mystery; but, so far as we have learned, the guesses of his most intelligent readers have been almost as wide of the mark as those of the least apprehensive. It has been all the more provoking to the former class, that each surprise was the result of art, and not of trick; for a rapid review of previous chapters has shown that the materials of a strictly logical development of the story were freely given. Even after the first, second, third, and even fourth of these surprises gave their pleasing electric shocks to intelligent curiosity, the dénouement was still hidden, though confidentially foretold. The plot of the romance is therefore universally admitted to be the best that Dickens has ever invented. Its leading events are, as we read the story consecutively, artistically necessary, yet, at the same time, the processes are artistically concealed. We follow the movement of a logic of passion and character, the real premises of which we detect only when we are startled by the conclusions.
The plot of "Great Expectations" is also noticeable as indicating, better than any of his previous stories, the individuality of Dickens's genius. Everybody must have discerned in the action of his mind two diverging tendencies, which, in this novel, are harmonized. He possesses a singularly wide, clear, and minute power of accurate observation, both of things and of persons; but his observation, keen and true to actualities as it independently is, is not a dominant faculty, and is opposed or controlled by the strong tendency of his disposition to pathetic or humorous idealization. Perhaps in "The Old Curiosity Shop" these qualities are best seen in their struggle and divergence, and the result is a magnificent juxtaposition of romantic tenderness, melodramatic improbabilities, and broad farce. The humorous characterization is joyously exaggerated into caricature,—the serious characterization into romantic unreality, Richard Swiveller and Little Nell refuse to combine. There is abundant evidence of genius both in the humorous and the pathetic parts, but the artistic impression is one of anarchy rather than unity.
In "Great Expectations," on the contrary, Dickens seems to have attained the mastery of powers which formerly more or less mastered him. He has fairly discovered that he cannot, like Thackeray, narrate a story as if he were a mere looker-on, a mere "knowing" observer of what he describes and represents; and he has therefore taken observation simply as the basis of his plot and his characterization. As we read "Vanity Fair" and "The Newcomes," we are impressed with the actuality of the persons and incidents. There is an absence both of directing ideas and disturbing idealizations. Everything drifts to its end, as in real life. In "Great Expectations" there is shown a power of external observation finer and deeper even than Thackeray's; and yet, owing to the presence of other qualities, the general impression is not one of objective reality. The author palpably uses his observations as materials for his creative faculties to work upon; he does not record, but invents; and he produces something which is natural only under conditions prescribed by his own mind. He shapes, disposes, penetrates, colors, and contrives everything, and the whole action, is a series of events which could have occurred only in his own brain, and which it is difficult to conceive of as actually "happening." And yet in none of his other works does he evince a shrewder insight into real life, and a clearer perception and knowledge of what is called "the world." The book is, indeed, an artistic creation, and not a mere succession of humorous and pathetic scenes, and demonstrates that Dickens is now in the prime, and not in the decline of his great powers.
The characters of the novel also show how deeply it has been meditated; for, though none of them may excite the personal interest which clings to Sam Weller or little Dombey, they are better fitted to each other and to the story in which they appear than is usual with Dickens. They all combine to produce that unity of impression which the work leaves on the mind. Individually they will rank among the most original of the author's creations. Magwitch and Joe Gargery, Jaggers and Wemmick, Pip and Herbert, Wopsle, Pumblechook, and "the Aged," Miss Havisham, Estella, and Biddy, are personages which the most assiduous readers of Dickens must pronounce positive additions to the characters his rich and various genius had already created.