CONTENTS OF UOL 1., NO. I. 



:.l. Observations on Conopholis Americana. By Lucy L. W. 

 Wilson, Ph. D., Head of the Biological Department, Phila- 

 delphia Normal School for Girls. (With plates i.-vi.) .... 3 



2. Recent Observations on Amphicarpsea Honoica. By Ade- 



line F. SCHIVELY, Ph. D., Honorary Fellow in Botany ... 20 



3. Water Storage and Conduction in Senecio Praecox, D. C, 



from nexico. By John W. Harshberger, Ph. D., 

 Instructor in Botany. (With plates vii.-viii.) 31 



4. Structure and Development of Internal Phloem in Gel" 



semium Sempervirens, Ait. By Caroline B. Thomp- 

 son, B. S. (With plate ix.) 41 



5. Structure of the Cork Tissues in Roots of Some Rosaceous 



Qenera. By Martha Bunting, Ph. D. (With plate x.) . 54 



6. Comparative Studies on the Rate of Circumnutation of 



some Flowering Plants. By Elizabeth A. Simons . . 66 



7. Observations on the Development of some Embryo-sacs. 



By Randolph E. B. McKenney, B. S. (With plate xi.) . . 80 



8. Observations on some Hybrids between Drosera filiformis 



and D. intermedia. By John M. Macfarlane, D. Sc, 

 Professor of Botany. (With plate xii.) 87 



9. Statistical information Concerning the Production of 



Fruits and Seeds in Certain Plants. By John W. 

 Harshberger, Ph. D., Instructor in Botany 100 



10. Proceedings of the Society .^ Ill 



