226 



<)KFICKK8,liiOO-1901, 9. 

 Officers, since organization, 11. 

 ■Ordovician rocks of southern Imliana, 2O0. 

 Ortliothetes ininutus, n. sp.. 216. 



PASTEl'll FILTER, divice for support- 

 ing, 157. 



Phasemeter, Rayleigh's alter, current, 110. 



Photoinicrograi)hy as it may be practiced 

 to-day, 34. 



Physical geography, aids in teacliing, 194. 



Poinsett Lake bottoms, etc., 179. 



Powders, vegetable. 120. 



President's address, 34. 



Price,.!. A., 179,181. 



Prime numbers, decomposition of, 105. 



Program sixteenth annual meeting, 2S. 



Protoplasm, movements of, in hyphae of 

 mould, 157. 



RAMSEY, EARL E., 21S. 



Eansom.J. H.,116. 



Hayleigh's alternate current phasemeter, 



110. 

 Report si.xteenth annual meeting, 33. 

 Rettger,L..J.,167. 

 River bends and bluffs, 197. 



SALAMANDER, a Kankakee, 165. 



■Salamander, new cave species of, 167. 



Scovell,.l.T.,124. 



Shaaf, Albert, 179, 181. 



Shell gorget, a, 81. 



Slonaker, .J. R.,167. 



Smart, R. A., 100. 



■Smut, experiments with, 123. 



Soutlicrn Indi:in;i, ordovician rocks of, 2(K). 

 Spy Run an<l Poinsett I;ake bottoms, 179. 

 Spy Run Creek, abaniloned meanders of, 181. 

 S((ueteaKue, on tlie life history of the, 166. 

 Stuart, Wni.,148, 153. 

 Staining of vegetal)le powders. 120. 

 Supporting Pasteur filter, device for, 157. 

 Syminedian point, properties of, 85. 



TEMPERATURE REdULATOR, automa- 

 tic, 90. 

 Tennessee, mid-summer plants of south- 

 eastern. 143. 

 Theory of numbers, a theorem in, 103. 

 Thomas, M.B., 121, 123. 

 Toad, on the daily habits of tlie, 167. 

 Tomatoes, bacterial disease of, 153. 



VAPOR DENSITIES, note on, 95. 

 A'egetable powders, examination of, 120. 

 Vegetable powders, staining of, 120. 

 Vertebrates of Winona Lake, cold-blooded, 



218. 



WABASH DRAINAGE SYSTEM, etc., 184. 

 Waldo,C. A., 91. 



AVehnelt interrupter, an improved, 97. 

 Wells and Whitley counties, mycological 



notes from. 161. 

 Western Indiana bowlder belts, 192. 

 Westlund,.lacob, 103, 105. ' 

 Williamson, E. B., 161, 173. 

 Winona Lake and vicinity, cold-blooded 



vertebrates of, 218. 

 Woods, microscopic structure of, 157. 

 Wright, J. S., 120. 



