106 HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 



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2096 INTELLECTUAL OBSERVER (The) : REVIEW of NATURAL HISTORY, MICROSCOPIC 

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2101 ISENTHAL (A. W.),andH. Snowden WARD: PRACTICAL RADIOGRAPHY : a Handbook for 

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2102 ISTITUTO CHIMICO : RICERCHE eseguite nell' Anno scolastico 1S90-1 ; with plate and 

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2103 [J. (S. B.)] CYCLOMETRY and CIRCLE-SQUARING in a NUTSHELL, by a Member of the British 

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2104 JACK (Richard, Teacher of Mathematics, Edin.} ELEMENTS of CONIC SECTIONS, demonstrating 

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2107 STATISTICS of HYDRAULIC WORKS and HYDROLOGY of ENGLAND, CANADA, EGYPT, and 



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2117 JALLABEE.T (Jean) THESES PHYSICO-MATHEMATICJE de GRAVITATE, in quibus ejus Leges 



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examini subjicitur, 4to. (pp. 27), sewn (rare], Qs Qd Geneves, 1731 



This thesis, the author's first printed work, was unknown to Poggendorff and to his Biographer in Biogr. Hen., and was 



defended before Gabriel Cramer, whom he succeeded as professor of mathematics at Geneva. 



