824 The American Naturalist. [October, 
17. Reaction of Leaves to Continual Rain-Fall. By D. T. Mac- 
Dougal. 
18. Studies in Nuclear Phenomena, and the Development of the 
Ascospores in Certain Pyrenomycetes. By Mary A. Nichols. 
19. The Stigma and Pollen of Arisaema. By W. W. Rowlee. 
20. Notes on the Genus Amelanchier. By N. L. Britton. 
21. Remarks on the Northern Species of Vitis. By L. H. Bailey. 
22. On the Formation and Distribution of Abnormal Resin Ducts 
in he By Alex. P. Anderson. 
3. The Development of the Cystocarp of Griffithsia bornetiana. 
i Se A. Smith. 
24. Notes on the Allies of the Sessile Trillium. By. L. M. Under- 
wood. 
25. On an Apparently Undescribed Cassia from Mississippi. By C. 
L. Pollard. 
26. A Bacterial Disease of the Squash-Bug (Anasa tristis). By B. 
M. Duggar. 
27. What isthe Bark? By C. R. Barnes. 
28. Embryo-Sac Structures. By J. M. Coulter. 
29. Some Cyperacew New to North America, with Pahstke on Other 
Species. By N. L. Britton. 
30. Grasses of Iowa. By L. H. Pammel. 
31. Ceres-Pulver: Jensen’s New Fungicide for the Treatment of 
Smut. By W. A. Kellerman. . 
32. On the Cardamines of the C. hirsuta group. By N. L. Britton. 
33. The Relation Between the Genera Polygonella and Thysanella, 
as Shown by a Hitherto Unobserved Character. By John K. Small. 
34. An Apparently Undescribed Species of Prunus from Connecti- 
cut. By John K. Small. 
35. The Flora of the Summits of King’s Mountain and Crowder’s 
Mountain, North Carolina. By John K. Small. 
36. Parthenogenesis in Thalictrum fendleri. By David F. Day. 
37. Notes on the Order Pezizineae of Schröter. By Elias J. Durand. 
38. What Should Constitute a Type Specimen? By 8. M. Tracy. 
39. Rheotropism and the Relation of Repose to Stimulus. By F.C. 
Newcombe. 
40. Some Adaptation of Shore Plants to Respiration. By Herman 
von Schrenk. 
41. The Mechanism of Curvature in Tendrils. By D. T. Mac- 
Dougal. 
