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Ponzi (Giuseppe). Catalogo ragionato di una collezione di materiali da 
? construzione e di marmi da decorazioni dello Stato Pontificio ... per 
la Esposizione universale di Londra dell’ anno 1862. (Tract. ) 
Ato. Rome, 1862. 
—. I) periodo glaciale e l’antichita dell’ uomo. (Tract.) 
: Ato. Rome, 1865. 
—. Storia naturale dell’ Agro pontino. (Tract.) S8vo. Rome, 1865. 
_—. La Tuscia romana e la Tolfa. (Tract.) 4to. Rome, 1877. 
—. Le acque del bacino di Roma. (Tract.) ' 8vyo. Rome, 1879. 
Poole (Francis). Queen-Charlotte Islands, a narrative of discovery and 
adventure in the North Pacific. 8vo. London, 1872. 
Poole (Henry 8.). See Rzrorts, Conontat. Nova Scotia. 
Poole (Reginald Stuart). The Genesis of the Earth and of Man. 
12mo. Edinburgh, 1856. 
Pooley (Charles). Notes on Calmsden Cross [Gloucestershire]. (Tract.) 
} 8yo. Gloucester, 1861. 
Pope (John). Report of an Exploration of the Territory of Minnesota. 
(Tract.) 8vo. Washington, 1850. 
Popoff (Alexander). Teopia Boant Wave Theory. (Tract.) 
3 4to. Kasan, 1868, 
- Porcupine Expedition. Preliminary Report of the Scientific Exploration 
of the Deep Sea in H.M. Surveying-vessel ‘ Porcupine,’ during the 
summer of 1869, conducted by Dr. Carpenter, J. Gwyn Jeffreys, and 
Prof. Wyville Thomson. (Tract.) 8vo. London, ee 0, 
_—. See Duncan (Peter Martin). 
- Porta (Leonardo). Soluzione di un problema importantissimo im pe0- 
logia, ed esame del flusso e riflusso del mare. (Tract.) 
} 8vo. Naples, 1839. 
Portal (Frédéric de). An essay on Symbolic Colours, in antiquity, the 
middle ages, and modern times. Translated, with notes, by W. S. 
7 ~6=—su Inman. Ato. London, 1845, 
; Porter (Henry). The Geology of Peterborough and its vicinity. 
8vo. Peterborough, 1861. 
ees (Thomas C.). See Surveys: Unirep States. 
ortlock (J. E.). Report on the Geology of the county of Londonderry 
and of parts of ES and Fermanagh. (Ordnance Geological 
3 Survey.) 8vo. Dublin and London, 1848. 
-—. A rudimentary Treatise on Geology. 2nd edition. 
¥ 12mo. London, 1853. 
-——. Memoir of the late Major-General Colby, with a sketch ‘of the 
origin and progress of the British Trigonometrical Survey. (Tract.) 
| 8vo. London. 
ps -——, Continuation of Memoir of the late Major-General Colby, with a 
sketch of the origin and progress of the British Trigonometrical 
Survey. (Tract.) 8vo. London. 
-—. See Mirirary Srrences. 
Bessie (Clemente Barrial). Estudio geolégico de la region aurifera de 
-___ Tacuarembé que comprende los distritos de Yaguari, de los Corrales y 
— deCufiapiri. (Tract.) 2 copies. 4to. Paris and Montevideo, 1878. 
Postlethwaite (John). Mines and Mining in the Lake-district. (Tract.) 
8vo. Leeds, 1877. 
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