"There is no work extant in which so much valuable information concerning Infusoria (Animalcules) can be found, and every Microscopist should add it to his library."--_Silliman's Journal._ Also, price 8s. 6d., MICROGRAPHIA, or Practical Essays on Reflecting and Solar Microscopes; Eye-Pieces; Micrometers, &c. Also, edited by the same, price 18s., ENGLISH PATENTS; being a Register of all those granted in the Arts, Manufactures, Chemistry, &c., during the first forty-five years of this century. WHITTAKER & Co., Ave Maria Lane. * * * * * APPROVED EDUCATIONAL WORKS FOR SCHOOLS AND FAMILIES. ALLEN AND CORNWELL'S GRAMMAR. With very Copious Exercises, and a Systematic View of the Formation and Derivation of Words, together with Anglo-Saxon, Latin, and Greek Lists, which explain the Etymology of above 7,000 English Words. Fifteenth Edition, 2s., red leather; 1s. 9d., cloth. GRAMMAR FOR BEGINNERS. Twenty-second Edition, 1s. cloth, 9d. sewed. Also, THE YOUNG COMPOSER; or, Progressive Exercises in English Composition. Part I., comprising Sentence-making, Variety of Expression, and Figurative Language; together with Appendices on Punctuation and the Use of Capitals. By JAMES CORNWELL, Ph. D. Fifteenth Edition. 1s. 6d. cloth. Also, A KEY TO THE YOUNG COMPOSER. With Hints as to the Mode of Using the Book. Price 3s. Also, SELECT ENGLISH POETRY. Edited by the late DR. ALLEN. Seventh Edition, price 4s. Also, DR. ALLEN'S EUTROPIUS. With a Complete Dictionary and Index of Proper Names. New Edition, price 3s. Also, A SCHOOL GEOGRAPHY. By JAMES CORNWELL, Ph. D. Fifteenth Edition. 3s. 6d.; or with Thirty Maps on Steel, 5s. 6d. Also, by the same, A SCHOOL ATLAS. Consisting of Thirty beautifully executed Maps on Steel. 2s. 6d. plain, 4s. coloured. "Characterised by perspicuity, accuracy, careful and truly scientific arrangement, and unusual condensation. In the hands of a good teacher, these cannot but be highly efficient school-books. The qualities we now indicate have secured to them extensive use, and Dr. Cornwell is now sure of a general welcome to his labours, a welcome which the intrinsic excellence of such books as these cannot but command."--_Christian Times._ London: SIMPKIN, MARSHALL, & CO.; HAMILTON, ADAMS, & CO. Edinburgh: OLIVER & BOYD; W. P. KENNEDY. * * * * * Second Edition, in cloth, 1s.; by post, 1s. 6d.; pp. 192. WELSH SKETCHES. Third (and last) Series. By the Author of "Proposals for Christian Union." CONTENTS: 1. Edward the Black Prince. 2. Owen Glendower, Prince of Wales. 3. Mediæval Bardism. 4. The Welsh Church. "Abounds with the results of antiquarian researches, conducted in a patient and intelligent spirit; and really forms an important contribution to popular literature."--_Chester Courant._