INDEX TO VOLUME XXXVIII.* 



Abbott, J. F., Biology, 106. 



Academy, National, meeting at Chi- 

 cago, 572. 



Actinium, active deposit in an elec- 

 tric field, Lucian, 539. 



Africa, Central, Botany, 105 ; Zool- 

 ogy, 106. 



Allegheny Observatory, publica- 

 tions, 109. 



Allen, E. T., Stokes method for de- 

 termination of marcasite and py- 

 rite, 371; formation of marcasite 

 and pyrite, 393. 



Amherst Eclipse Expedition, Todd, 

 556. 



Antiquity of Man in Europe, J. 

 Geikie, 571. 



Arctic Paleozoic fossils, Schuchert, 

 467. 



Argentina, Andes, geological notes, 

 Palmer, 309. 



Arizona, Little Colorado Valley, 

 Gregory, 491. 



Arndt, K., Colloids in Industrial 

 Arts, 479. 



Association, American, meeting at 

 San Francisco, 113, 572. 



— British, meeting in Australia, 114, 

 569, 572. 



Barbour, E. H., Medusina walcotti, 

 a Carboniferous jelly fish, 505; Car- 

 boniferous eurypterids of Nebraska, 

 507. 



Barrell, J., geologic time-table for 

 North America, 1. 



Barus, C, contractions of FitzGer- 

 ald-Lorentz effect, 352. 



Berckhemer, F., problematic fossil 

 from Catskill formation, 275. 



Bergen, J. Y., Botany, 105. 



Bermuda, geology, Pirsson, igneous 

 platform, 189; petrology of lavas, 

 331. 



Bigelow, F., determination of the 

 •'Solar Constant," 277. 



Biology, Abbott, 106; McFarland, 

 106. 



Black Hills, Minerals, 104. 



Blake, J. M., Nobert's ruling, 147. 



* This Index contains the general heads 

 Obituary, Rocks; under each the titles 



BOTANY & BOTAN. WORKS: 



Botany, Bergen and Caldwell, 105. 



— German Expedition to Central 

 Africa, 105. 



Cycads, etc., see GEOLOGY. 



Flora of Iowa, weed, Pammel, 104. 



Plants, irritability of, Bose, 105. 

 Bo wen, N. L., the ternary system, 



diopside-forsterite-silica, 207. 

 Bradley, W. M., empressite from 



Colorado, 163. 

 Bragg, crystalline structure of cop- 

 per, 481. 

 British Museum, catalogues, 108. 

 Brown, E. W., Royal Society medal 



awarded to, 572 ; theory of the 



moon's motion, 569. 

 Brown, J. C, Essays and Addresses, 



559. 



Caldwell, O. W., Botany. 105. 



California, Minerals, Eakle. 487. 



Canada, Dept. of Mines, 102. 



Carnegie Institution of Washington, 

 publications, 111, 489. 



Carothers Observatory, 110. 



Cave, Pine Rock, New Haven, Mac- 

 Curdy, 511. 



Celestial Mechanics, Moulton, 109. 



Chemical Analysis, Quantitative, 

 Foulk. 478. 



Chemistry, Household, Snell, 478. 



— Organic, Clark, 559 ; Kingscott 

 and Knight, 558 ; Stoddara, 559. 



— Physical, Jellinek, 479. 



CHEMISTRY. 



Actinium, active deposit, 539. 

 Alkali halides, crystal form, Cook, 



142. 

 Carbon compounds, Cuno, 92. 

 Carnotite, radium -uranium ratio, 



Lind and Whittemore, 477. 

 Cobalt, determination, Metzl, 558. 

 Colorimetric determinations, Hutt- 



ner, 362. 

 Copper, crystalline structure, Bragg, 



481. 

 Cyanides, detection, Barnebey, 362. 

 Cyanogen bands, Grotrian and 

 'Runge, 363. 



. Botany, Chemistry, Geology, Minerals, 

 of Articles referring thereto are included. 



