ELEVEN HUNDRED ENGRAVINGS. Royal 8vo. Cloth, Gilt Lettered--Price 5s. 6d. FOOTNOTES: [1] Second Number of "Meteorological Papers," issued by the Board of Trade. [2] With reference to these barometers, we have received the subjoined testimonial, with permission to use it as we please. "_Meteorologic Office, 12th June, 1863._ "MESSRS. NEGRETTI & ZAMBRA, "The barometers which you have lately supplied to Her Majesty's ships through this Office are much approved, being good for general service, afloat or on land. "(Signed) R. FITZROY." [3] _Vide_ C. Daubeny, F.R.S., "On Climate." [4] _Vide_ Report of the British Association, 1862. [5] See page 42 for the Tables. [6] The quotations in this section are from Tyndall's _Heat considered as a Mode of Motion_. [7] Dr. Daubeny, F.R.S., _On Climate_. [8] Leslie _On the Relations of Air, Heat, and Moisture_. [9] Tyndall's _Heat considered as a Mode of Motion_. [10] Vide _Horological Journal_, Vol. V. [11] _Hygrometrical Tables_, by J. Glaisher, Esq., F.R.S. [12] Vide _Report of the British Association_, 1862. It may be added, for the information of those who are about to commence observing, that Mr. Symons, of Camden Road Villas, London, is desirous of securing returns of rain-fall from as many stations as possible, in order to render more complete his annual reports to the British Association. [13] Luke Howard's _Climate of London_. [14] Vide _Third Number of Meteorological Papers_, issued by the Board of Trade. [15] _Elements of Physics_, by C. F. Peschel. [16] This description is modified from that in Report of the Jurors for Class XIII. International Exhibition, 1862. [17] _All the Year Round_, No. 224. [18] _All the Year Round_, No. 224. [19] Vide _Jurors' Reports_. [20] See also page 90 of this Treatise. [21] These Instruments are the only Maximum Thermometers that can be recommended, as unless they be broken, they cannot be put out of adjustment. Fully described under the head of Standard Maximum Thermometers in our large Catalogue, and page 72 of our _Treatise on Meteorological Instruments_.