| | | Augustus de la Rive belongs to the aristocracy of Geneve, | and is one of the wealthiest of Genevese. This does not | prevent him from having, until quite recently, filled the post | of Professor to the University, just like any other less | favoured mortal, whose professorship would be a | livelihood; nor does it prevent him from annually giving a | course of lectures on his favourite science, at which the | Genevese gentry attend, with great pleasure and profit, the | payment being just enough to defray all the expenses. The | lecture-room is, or was, M. de la Rive’s own premises, and | no stranger would ever suspect that the Professor had any | other mode of

“making his way”

than this of | lecturing ~~ an art which he practises in so masterly a style | that no auditor finds it difficult to follow him. Imagine our | Bedfords, Devonshires, Sutherlands, and Buccleuchs

| “doing duty”

at the London University, receiving | salaries, and being subject to a senate, like their brother | professors! It is true that some of our nobility have lately | taken to lecturing on literature and other easy topics, and it | is certain that some of our nobility are better versed in | science than many a professional man; but a professor | with a coronet has not yet made his appearance in our | lecture halls. This is not said invidiously of England, for | although France may occasionally present the spectacle of | professional peers, a pair de France is not a | nobleman; and Germany is quite as deficient in titled | professors as England. | The secret of the Genevese Professor is very simple. It is | not avarice which makes him take a small office for the | sake of a salary. It is tat, in Geneva,

“to be nothing” |

~~ which is with us popularly supposed to represent | the status of a gentleman ~~ is dishonourable. | Everyone must be employed. | Every man is a citizen of the republic, and must fill some | office. Augustus de la Rive, who, since 1824, has been | known to Europe as one of the distinguished names in | science, has made the study of electricity the object of his | ambition, and the popular exposition of electrical science | the office of his citizenship. He has not been a | dilettante, filling the aching void of weary hours, but a | passionate worker, eager to attain results, and ever ready | to promulgate them. | From such a life we are entitle to expect noble results ~~ | from such a man we anticipate masterly works; and | masterly, indeed, is the Treatise now lying | before us, in which is expounded the whole of what | European zeal and genius have discovered up to the | present time in the vast and difficult science of electricity. It | was his original intention to complete the work in two | volumes; but although this second volume contains | upwards of nine hundred compact pages, a third has been | found necessary to complete his design. Nor will | anyone who cares two pins about | the book regret this extension; for here we have a work | which is extensive, not because the writer is diffuse, but | because his knowledge is exhaustive ~~ not because he ill | understands the art of exposition, but because he is a | master of exposition and his matter is abundant. The | pages are as

“full of matter as an egg is full of meat” |

~~ they are not padded out with slack verbiage, | irrelevant digressions, or unnecessary details. M. de la | Rive seeks to convey, with something of the indispensable | fulness of detail, all the leading principles and facts, with | their accompanying hypotheses and theories, which | constitute what may be fairly considered the present state | of electrical science. In all departments of knowledge, there | are two distinct classes of books ~~ there are first the | pandects, and next the summaries. What | Haller did for physiology in his immortal work, De la Rive | has done for electricity in this treatise. If fuller details be | required, the student must seek them in the various | monographs carefully cited in these volumes. Or if a brief | statement of principles, unaccompanied by the evidence | on which they rest and the experiments by which they may | be tested, be what the student needs, let him seek one of | the numerous summaries that are published ~~ De la Rive | has not addressed him. The very greatness of the scale on | which this work is planned will at once suggest that we can | do no more than indicate its nature and value. Any attempt | at

“reviewing”

would be hopeless as it would be | needless. Those among our readers, and they must be | many, to whom such a work will be very welcome, only | require to be made aware of the fact that it exists; while | others will not in the least concern themselves with it, be it | never so attractive. | This second volume treats of the propagation of electricity | ~~ its calorific and luminous effects, its chemical and its | physiological effects. It then considers the sources | of electricity ~~ i.e., heat, mechanical action, and | chemical action. All these delicate problems are set before | us in a style singularly clear and unpretending, reminding | us somewhat of Faraday’s mode of lecturing. The | experiments are narrated with great precision, full yet brief, | and profusely illustrated by diagrams. The point where | theory ends and hypothesis begins, is always marked with | care by the Professor, who shows at once a rigid | independence and a generous recognition in his criticisms | of his brother savants. Altogether, we can name no work | so eminently adapted to the wants of the student, and to | the instruction of the amateur.