191 S] CONTENTS. XXVll 



Page. 



Ward, B, A., Control of the Jack Rabbit Pest in Nevada 456 



Weir, J. R., New Hosts for Rasoumofskya americana and R. occidentalis 



abietina 152 



Weir, J. R., Sparassis radicata, an Undescribed Fungus on the Roots of 



Conifers 253 



Weir, J. R., Montana Forest Tree Fungi. — I, Polyporacese 553 



Weir, J. R.. and Hubert, E. E., Pycnial Stages of Important Forest Tree 



Rusts 253 



Weir, J. R., and Hubert, E. E., Recent Cultures of Forest Tree Rusts_'__ 253 



Weir, J. R., and Hubert, E. E., Observations on Forest Tree Rusts 553 



Weir, W. W., Farm Drainage Methods 288 



Weir, W. W., Report on Kearney Vineyard Experimental Drain 591 



Wells, E. L., Economic Asi)ect of Climatology 317 



Weston, W. H., An Achlya Lacking Sexual Reproduction 225 



Wetmore, A., Relationships of the Fossil Bird Palwochenoides mioceamcs. 556 



Wight, W. F., Origin, Introduction, and Primitive Culture of the Potato.- 332 



Willett, G., Rio Grande Bird Reservation, New Mexico 555 



Williams, R. R., The Chemical Nature of the Vitamins 580 



Willis, C. P., Incidental Results of a Study of Douglas Fir Seed 347 



Wilson, C. P., and Young, C. O., Determination of the Volatile Oil Con- 

 tent of Citrus Fruits 11 



Wright, S., Color Inheritance in Mammals, II-V 776 



Zon, R., Forest Problems and Economic Development in South America 246 



Zon, R., South American Forest Resources and Their Relation to the 



World's Timber Supply 246 



ILLUSTRATION. 



Fig. 1. Efficiency of varying amounts of rainfall 717 



