Various

A Cyclopaedia of Canadian Biography: Being Chiefly Men of the Time


Скачать книгу

and they have five sons and one daughter living, and have buried three children, the last, an exceedingly promising youth, in his sixteenth year.

      Department of Public Instruction,

      St. Petersburg, Feb. 14th, 1877.

      To M. Baillairgé, architect, Quebec,

      Sir—The Committee on Science of the Department of Public Instruction (of Russia) recognizing the unquestionable usefulness of your “Tableau Stéréométrique,” for the teaching of geometry in general, as well as its practical application to other sciences, is particularly pleased to add its unrestricted approbation to the testimony of the savants of Europe and America, by informing you that the above “Tableau,” with all its appliances, will be recommended in the primary and middle schools, in order to complete the cabinets and mathematical collections, and inscribed in the catalogues of works approved of by the Department of Public Instruction. Accept, sir, the assurance of my high consideration.

      E. de Bradker,

      Chief of the Department of Public Instruction.

      And the Quebec Mercury of the 10th July, 1878, has the following in relation to a second letter from the same source: “It will be remembered that in February, 1877, Mr. Baillairgé received an official letter from the Minister of Public Instruction, of St. Petersburg, Russia, informing him that his new system of mensuration had been adopted in all the primary and medium schools of that vast empire. After a lapse of eighteen months, the system having been found to work well, Mr. Baillairgé has received an additional testimonial from the same source, informing him that the system is to be applied in all the polytechnic schools of the Russian empire.” Mr. Baillairgé has since that time given occasional lectures in both languages on industrial art and design, and on other interesting and instructive topics, and is now engaged on a dictionary or dictionaries of the consonances of both the French and English languages. In 1866 he wrote his treatise on geometry and trigonometry, plane and spherical, with mathematical tables—a volume of some 900 pages octavo, and has since edited several works and pamphlets on like subjects. In his work on geometry, which, by the way, is written in the French language, Mr. Baillairgé has, by a process explained in the preface, reduced to fully half their number the two hundred and odd propositions of the first six books of Euclid, while deducing and retaining all the conclusions arrived at by the great geometer. Mr. Baillairgé, moreover, shows the practical use and adaptation of problems and theorems which might otherwise appear to be of doubtful utility, as of the ratio between the tangent, whole secant, and part of the secant without the circle, in the laying out of railroad and other curves running through given points, and numerous other examples. His treatment of spherics and of the affections of the sides and angles is, in many respects, novel, and more easy of apprehension by the general student. In a note at foot of page 330, Mr. Baillairgé shows the fallacy of Thorpe’s pretended