64 SCHOOL OF MINES LIBRARY. 



HORSFORD, E. N. Report on an Investigation of the Sources of the 

 Offensive Odors which are ascribed, in a petition by John 

 M. Tayler and others, before the State Board of Health, to 

 the Hog-Slaughtering Establishment of John P. Squire & Co., 

 of East Cambridge. 8vo. 40pp. Cambridge, Mass., 1873. 



Scientific Researches. Vol. VI., Pamphlets. Octavo series. 



8vo. 36 pp. Albany, 1852. 



The Permeability of Metals to Mercury. Vol. xxvra., Pam 

 phlets. Octaro series. 8vo. 14 pp. 



HOSKOLD, H. D. A Practical Treatise on Mining, Land and Rail 

 way Surveying, Engineering, &amp;lt;fcc. 



8vo. 249 pp. London, 1863. 



HOUGH, Franklyn B. Census of the State of New- York for 1865. 

 Prepared from the Original Returns under the Direction of 

 Francis D. Barbour, Secretary of State. 



4to. 473 pp. Albany, 1867. 

 How, Henry. The Mineralogy of Nova Scotia. 



8vo. 217 pp. Halifax, 1869. 

 How You Waste Your Fuel and How to Prevent It. A Few Facts 



On Combustion. Vol. XVI., Pamphlets. Octavo series. 



Svo. 12 pp. Worcester, 1866. 



HUBBA.RD, Prof. See under Washington Astronomical and Meteo 

 rological Observations. 

 HUBBE, H. Reisebemerkungen, hydrotechnischen Inhalts. 



4to. 64 pp., XIII. plates. Hamburg, 1844. 



HUBERT, Alois von. Anleitung durch Coiorimetrie den Kupper- 

 halt, von Erzen-und Hiitten Producten. 



Svo. 58 pp. Vienna, 1852. 



HUET, A. See Exposition Universelle de Paris, en 1867. 

 HUGHES, G. W. Report relative to the working of Copper ore. 

 Vol. VII., Pamphlets. Octavo series. 8vo. 58pp. Washington, 1844. 



Samuel. A Treatise on Gas Works. 



Svo. 336 pp. London, 1866. 

 HUGO, Leopold. Essai sur le Geometric des Cristalloides. 



Svo. 16 pp. Paris, 1873. 



Introduction a la Geometric Descriptive. Des Cristalloides, 



Vol. I., Pamphlets. Octavo series. 



8vo. 19 pp., III. plates. Paris, 1874. 



Les Cristalloides a Directrice Circulaire. 



Svo. 40 pp., I. plate. Paris, 1867. 



Les Cristalloides Complexes a Summit Etoile. Vol. I., Pam 

 phlets, octavo series. Svo. 24 pp., III. plates. Paris, 1872. 



Thebrie des Cristalloides Elementaires. 



Svo. 58 pp., I V. plates. Paris, 1867. 



HUMBER, William. A Handy Book for the Calculation of Strains 

 in Girders. 12mo. 71 pp. London, 1868. 



See Barlow, Peter. 



HUMBOLDT, Alexander von. Atlas Geographique et Physique du 

 Royaume de la Nouvelle Espagne. 



Folio. XX. plates and maps. Paris, 1812. 



