114 INDEX. 



Spiegel-iron from North (.'arolina, analysis of. II, 4(). 



Stephenson, J. A. I). I, 40. 



Storm of April 22d, 1883. I, 83. 



Sugar beets from Kentucky. III. 143. 



Sugar in urine, quantitative determination of. II, 69. 



Superphosphates from Red Navassa Rock, reversion in. I, 06. 



Tampa, Fla., geology of the region about. II, 8G. 



Taxodium in North Carolina quaternary. II, 92. 



Thermometer for class illustration. Ill, 142. 



Thiophen octyl derivatives. Ill, 63. 



Tornado in Catawba and Iredell counties, March 25, 1884. I, 40. 



Tornado in Richmond county, February 19, 1884. I, 28. 



Tornadoes, theory of. I, ol. 



Twisting of trees. II, 94. 



Venable, F. P. I, 3, 38, 47, 69, 82, 83, 85, 86, 88; II, 5, 7, 39, 48, 57, 63, 77 ; 



III, 5, 8, 34, 142; IV, 1st 8, 12, 57; IV, 2d 31, 36, 96, 103. 105. 

 Wash-bottle for chemical laboratories. Ill, 32. 

 Wilkes. .J. F. I, 18; II, 90. 

 Wilson, A. E. II, 95. 



Wines from North Carolina, analyses of. IV, 2d. 

 Wood, Julian. I, 24. 

 Wood, Thos. F. II, 9; III, 77. 

 Yeopon, analysis of leave.'*. II, 39. 

 Zinc in drinking water. I, 47. 

 Zinc, oxide deposit of. I. 84. 



PLATES AND ILLUSTRATIONS. 



Portrait of Elislia Mitchell, D. D. Vol. 1. 



Portrait of M. A. Curtis, D. D. Vol. II. 



Portrait of L. D. v. Schweinitz, D. D. Ph. D. Vol. III. 



Ma{) of New Hanover county, N. C. Vol. III. 



A new Trap-Door Spider, PI. I, PI. II. Vol. IV, 1st. 



Family of T. D. Spiders, PI. I, PI. II. Vol. IV, 1st. 



Portrait of W. C. Kerr, Ph. D. Vol. IV, 2(1. 



Ants' Ne.st. Vol. IV, 2d. 



Earth-worm. Vol. IV, 2d. 



A new Bunsen Burner. Vol. IV, 2d. 



Electrolysis of water. Vol. IV, 2d. 



Figures in the text. Vol. I, 52 ; Vol. Ill, 32; Vol. Ill, 142. 



