326 Miscellaneous Intelligence 



C. G. "Wheeler: Action of carbonic anhydride in aqueous solution on some 

 minerals, and modifying influence of sodium chloride. 



3. Mechanical Science. 



L. S. Randolph : Strength of stay-bolts in boilers. 



D. P. Todd: On a universal form of pressure motor. 



S. S. Haight : Use and value of accurate standards for surveyors' chains. 



J. Burkitt Webb: The lathe as an instrument of precision; The economy of 

 accurate standards. 



C. J. H. Woodbury : Experiments upon the coefficient of efflux of automatic 

 sprinklers. 



F. C. Wagner : Electric light tests. 



M. E. Coolet: Testing indicator springs; A new smoke-burning device. 

 R. H. Thurston : Cylinder condensation in steam engines ; A Prony brake for 

 governing powerful steam engines. 



A. Hogg: Deep water at Galveston, Texas, and how to secure it. 



4. Geology, Paleontology, Mineralogy. 



A. Winchell: Geology of Ann Arbor; Ccenostroma and Idiostroma, and the 

 comprehensive character of Strom atoporoids ; Sources of trend and crustal sur- 

 plusage in mountain structure. 



W. B. Taylor: A probable cause of the shrinkage of the earth's crust. 



S. G. "Williams : Westward extension of rocks of the Lower Helderberg period 

 in New York. 



J. D. Dana : Lower Silurian fossils in a limestone of the original Taconic. 



L. E. Hicks: Structure and relations of the Dakota Group. 



E. D. Chester: Results from a study of the gabbros and associated amphibo- 

 lites in Delaware. 



A. D. Crandall: Occurrence of trap rock in eastern Kentucky. 

 A. H. Worthen : The Quaternary deposits of Hlinois. 



G. K. Gilbert : Post-glacial changes of level in the basin of Lake Ontario. 

 H. S. Williams : Classification of the Upper Devonian. 



E. Orton: The gas and oil wells of northwestern Ohio; Record of the deep 

 well of the Cleveland Rolling Mill Co., Cleveland, 0. 



W. Mc Adams : The Loess and drift-clays. 



W. B. Dwight : Discovery of fossiliferous Potsdam limestone at Poughkeepsie, ' 

 IT. T. 



E. W. Claypole : The materials of the Appalachians. 



T. Sterry Hunt : Apatite deposits in Laurentian rocks. 



J. C. Branner : Glaciation of the Lackawanna Valley. 



C. Wachsmuth: The presence or absence of underbasals can be ascertained 

 from the columns. 



E. D. Cope : On the brain and auditory organs of a Permian Theromorph Saurian. 



A. S. Tiffany: The Corniferous or Upper Helderberg Group of Scott County, 

 Iowa and Rock Island, 111., with a list of fossils; The Chemung Group at Burling- 

 ton, Iowa, with a list of its fossils. 



N. H. "Winchell : Notice of Lingula and Paradoxides from the red quartzites 

 of Minnesota. 



G. F. Kunz : A new mass of meteoric iron from Charleston, Kanawha County, 

 "West Virginia ; Mineralogical notes : Tourmaline locality at Rumford, Maine ; 

 Pseudomorph of feldspar after leucite (?) from Magnet Cove ; On a remarkable 

 rough collection of diamonds; Native antimony and its associations at Prince 

 William, New Brunswick. 



5. Botany, Zoology, Microscopy. 



E. Sturtevant: Observation on the hybridization and cross-fertilization of 

 plants ; Germination studies. 



C. E. Bessey: Further observations on the adventitious inflorescence of Cus- 

 •cuta glomerata; Question of bisexuality in the pond-scums {Zignemacece). 



C. R. Barnes : Process in fertilization in Campanula Americana. 



