INDEX. 
507 
Page 
Walcott, C. D.: United States forestry re¬ 
serves. 472 
Ward, L. F.: A reconnaissance through In¬ 
dian Territory, Oklahoma, and south¬ 
western Kansas. 454 
— The filiation of the sciences. 449 
Washington monument as a sun dial, The. 
G. Thompson. 46:! 
Water level of Lake Michigan gradually 
diminishing? Is the. H. A. Hazen.. 465 
Watkins, J. E.: A chapter from the early 
history of mechanics. 492 
— A chapter in the early history of trans¬ 
portation in America. 452 
— A forgotten experiment of Franklin’s. 462 
— Transportation and lifting of heavy bod¬ 
ies by the ancient engineers. 472 
Wead, C. K.: Application of electricity to 
musical instruments. 487 
— A system of genealogical notation. 464 
Page 
Wead, C. K.: Mediaeval church organs. 463 
— Some Arab musical scales. 491 
Weather, climate, and crops. C. Abbe. 477 
— folk-lore. H. A. Hazen. 474 
Weights and measures, A year’s work of in¬ 
ternational bureau of. O. H. Tittmann. 467 
Welling, J. C., Obituary notice of, by J. H. 
Gore. 438 
Wiley, H. W.: Useful bacteria. 473 
Winlock, W. C., Death of.. 454 
— Obituary notice of, by J. R. Eastman.. 431, 460 
Winston, I.: The present form of precise 
leveling apparatus in use by the U. S. 
Coast and Geodetic Survey. 449 
Woods, E., Election to membership of.. 439 
Wright, C. D.: The factory system as an ele¬ 
ment in civilization. 451 
Yates, C. C., Election to membership of. 465 
— Personal equation in estimating tenths... 475 
71—Bull. Phil. Soc., Wash., Vol. 13. 
