Index. 
Pace 
Hobbs, William Herbert: The correlation of fracture systems 
and the evidences of planetary dislocations within the 
earth’s crust (with Plate III). 15 
-: Memorial address—Nathaniel Southgate Shaler (with 
portrait) . 924 
Johnson, Roswell Hill: The individuality and variation of the 
pyloric caeca of the Centrarchidae (with Plates XLI-XLV 
and two text-figures). 713 
Juday, Chancey: Studies on some lakes in the Rocky and 
Sierra Nevada mountains (with Plates XLVIII-L). 781 
Kahlenberg, Louis: On the nature of the process of osmosis 
and osmotic pressure with observations concerning dialysis 
(with seven text-figures). 209 
Lueders, Edith: Memorial address—Herman Frederick Lueders 
(with portrait) .917 
Marsh, C. Dwight: A revision of the North American species of 
Diaptomus (with Plates XV-XXVIII). 381 
Marshall, William S.: The reproductive organs of the female 
maia moth, Hemileuca maia (Drury) (with Plates I and II) 1 
Nichols, Susie Percival: The nature and origin of the binucle- 
ated cells in some Basidiomycetes (with Plates IV-VI). 30 
Norton, Richard G.: An investigation into the breaking of 
watch mainsprings in greater numbers in the warm months 
of the year than in the cold months (with Plate XXXV).... 654 
Olive, Edgar W.: Notes on the occurrence of Oscillatoria pro- 
lifica (Greville) Gomont in the ice of Pine lake, Waukesha 
county, Wisconsin. 124 
-: Cytological studies on Geratiomyxa (with Plate XLVII)... 753 
O’Shea, M. V.: The parts of speech in the child’s linguistic de¬ 
velopment . 178 
Peckham, George W., and Peckham, Elizabeth G.: The Attidae 
of Borneo. 603 
Reed, George M.: Infection experiments with Erysiphe graminis 
DC. 135 
-: Infection experiments with the mildew on cucurbits, Ery¬ 
siphe cichoracearum DC. 527 
Sands, M. C.: Nuclear structure and spore formation in Micro- 
sphaera alni (with Plate XLVI). 733 
Skinner, Ernest Brown: The determination of the value of the 
right of way of Wisconsin railroads as made in the appraisal 
of 1903 . 794 
Thwaites, Reuben Gold: Memorial address—James Davie But¬ 
ler (with portrait). 897 
