JASPERS — JtJDD 97 



Page 



Jaspers of Pacific Coast ranges 6, 83 



Jeffs, O. \V., cited on photographs 2, 615 



Jenney, W. p., Acknowledgments to 9, 329 



— cited on Beulah shales 10, 393 



geology of the Black hills 1, 204 



zinc and lead deposits 5, 25 



— , Fossil plants collected by 10, 386 



— , Photographs presented by 4,418 



Jentzsch, Alfred, Title of paper by 5, 627 



Jessup, a. E., cited on crystalline limestones of the Adirondacks 6, 243 



JoHANN David Schoepf and his contributions to North American geology; 



G. n. Williams 5, 591 



Johns Hopkins University collection. Figure of specimen in 7, 248 



Johnson, 0. W., Acknowledgments to 7, 136 



Johnson, Miss I. L., Acknowledgments to 7, 207 



Johnson, L., cited on drumlins 7, 20 



Finger lakes of New York 5, 345-347 



Johnson, L. C, cited on Alum Blutf deposits 5, 148, 157 



Aspalaga clays 5, 154 



Chesapeake formation '. . . . 5, 168 



" Cretaceous islands " 5, 315 



geology of Alabama 2, 587, 599 



Grand Gulf beds 5, 167 



— ; The Chattahoochee embayment 3, 128 



— ; The Nita crevasse 2, 20 



— , Title of paper by 4, 2 



Johnson, , cited on formulae used in coal analysis 5, 48 



Johnson, S. \V., cited on influence of humus acid on rock decay 7, 302 



vegetation on rock decay 7, 301 



organic acid 7, 306 



Johnson, W. D.. Reference to geographic work of. 8, 91, 107 



— , Title of paper by 10, 479 



9 



Ol 



Johnson gravels. Description of 3, 



Johnston-La VIS, H. J., cited on " Breadcrust bomb " 5, 598 



igneous rocks : 6, 420 



Jointing, Origin of 4, 72 



Jones, C. C, Photographs by , 2, 619 



Jones, T. R., cited on driftwood in Arctic regions 1, 316 



ScoUthus 3, 34 



Jordan sandstone. Definition of 3, 342 



, Fossils of the 6, 177 



of the Magnesian series 6, 169, 175-177 



Joy, C. a.. Retirement of, as president of New York Academy of Sciences. 4, 397 



Juan de Fuca, Straits of 9, 113 



JuDD it Detweilek, Contract with 1, 535 ; 5, 615 



JuDD, J. W. , cited on leucite 8, 171 



olivine 5, 221 



secondary growth of crystals 4, 1 71-173 



XIII— Bull. GeoL. Soc. Am. 



