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Página 6 - Report on the Geology of the County of Londonderry, and of Parts of Tyrone and Fermanagh, examined and described under the Authority of the MasterGeneral and Board of Ordnance.
Página 18 - Levelling. A TREATISE on the PRINCIPLES and PRACTICE of LEVELLING ; showing its Application to Purposes of Railway and Civil Engineering, in the Construction of Roads ; with Mr. TELFORD'S Rules for the same. By FREDERICK W. SIMMS, FGS, M. Inst. CE Sixth Edition, very carefully revised, with the addition of Mr.
Página 18 - RURAL CHEMISTRY: An Elementary Introduction to the Study of the Science, in its relation to Agriculture and the Arts of Life. By EDWARD SOLLEY, Professor of Chemistry in the Horticultural Society of London.
Página 14 - OBSERVATIONS on the genus unio, together with descriptions of new species in the families Naiades, Colimacea, Lymnaeana, Melaniana, and Peristomiana, etc.
Página 10 - DISEASES, chiefly of Soldiers and Seamen; on the means used to simulate or produce them, and on the best Modes of discovering Impostors; being the Prize Essay in the Class of Military Surgery in the University of Edinburgh. 8vo. cloth, 9s.
Página 23 - Observations on Days of Unusual Magnetic Disturbance, made at the British Colonial Magnetic Observatories under the Departments of the Ordnance and Admiralty, printed by the British Government under the Superintendence of Lieut.-Col.
Página 5 - With Observations on the Osteology, Natural Affinities, and probable Habits of the Megatherioid Quadrupeds in general. By RICHARD OWEN, FRS, &c.
Página 9 - DILLWYN (LW) Hortus Collinsonianus ; an Account of the Plants cultivated by the late Peter Collinson, Esq., FRS, arranged alphabetically according to their modern names, from the catalogue of his garden and other manuscripts.
Página 324 - It is also perhaps important to observe, that now, as has always been the case, an increase of instrumental power has added to the number of the clusters at the expense of the nebulae, properly so called ; still it would be very unsafe to conclude that such will always be the case, and thence to draw the obvious inference that all nebulosity is but the glare of stars too remote to be separated by the utmost power of our instruments.