pt7 



Tenth Year. 

 Vol. XX. No. ol3. 



NOVEMBER 25, 1892. 



Single Copies, Ten Cents. 

 3.50 Per Yeah, in Advance. 



Contents. 



Modern Quarry Eefuse and the Pal^eolithic 



Theory. W. H. Holmes 395 



Modern Synthetic Geometry versus Euclid. 



Bobert J. Aley 397 



Weights and Measures in England versus the 



Decimal and Metric Systems. J. James 



Cousins 298 



A Cheap Form op Bos for Microscope Slides. 



George P. Merrill 398 



Spontaneous Combustion in Mines. Arnold 



Lupton 299 



The Pedigree of the Letter Y. Canon Isaac 



Taylor 300 



Instinct. C. F Amery 300 



The Date of the Last Glacial Epoch. I C. 



Vowell 302 



Alabama Bauxite. Henry McCalley 303 



The Introduction of Foreign Species. John 



Gifford 304 



PAL.aEOLITHIC MAN IN THE SOUTHERN PORTION 



OF THE Delaware Valley. Hilborne T. 



Cresson 304 



Letters to the Editor. 



Natural Implements. W. M. Beauckamp .. 305 



Jealousy of a Dog. L. L. H 305 



Book Reviews. 



A Treatise on Plane and Spherical Trigo- 

 nometry 306 



Among the Publishers 307 



Entered at the Posi-OflBce of New York, N.Y., as 

 Second-Class Mail Matter. 



DRESS FABRICS. 



NoYclties received by last steamers. 



NEW MATERIALS, FANCY WEAVES, 



Novel Colorings in plain and fancy 



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OMBRE &CAMELEON VELOURS 



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VELOURS ECOSSAIS, BENGALINES, 



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Armures, Camel's Hair, 



WOOL PLAIDS, WOOL CREPES, 



Crepons, Cashmere d'Ecosse. 

 EMBROIDERED ROBES 



IVEW YOKIi. 



ARCH^OLOGICAL WORKS 



OI.VHIPOS: TAIiES OF ''HE GODS OF 

 GREKCE AND ROME. 



By Talfourd Ely, Member of the Council of 

 the Society for the Promotion of Hellenic 

 Studies. With thirty-two illustrations de- 

 signed from the best classical models. 8vo, $3 



A IHANUAL OF ARCHJE01.0GY. 



Containing an Introduction to Egyptian, 

 Oriental, Greek. Etruscan and Eomau Art. 

 By Talfourd Ely, author of "Olympos: 

 Tales of the Gods of Greece aud Rome." 

 With 114 illustrations. 8vo, §3. 



EGYPTIAN ARCHiEOIiOGY. 



By G. Maspero. Translated from the 

 French by Amelia B. Edwards. 229 illus- 

 trations. 8vo, gilt top, $3. 



A MANUAl, OF ORIENTAL. ANTICIUI- 

 TIES. 

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 and Industrial Arts of Chaldea, Assyria, 

 Persia, Syria. Judea, Phoenicia, and Car- 

 thage. By Ernest Babelon. Translated 

 and enlarged by B. T. A. Evetts, M.A. 

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PRIMITIVE MAN IN OHIO. 



By Warren K. Moorehead, Fellow of the 

 American Association for the Advancement 

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PREHIKTORIC AMERICA. 



By the Marquis de Nadaillac. Translated 

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THE MANNERS AND MONUMENTS OF 

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