No. 39. Contributions to American Bryology, ITI.— Notes on the North American 
Species of Orthotrichum. By Elizabeth G. Britton, . 25 cents. 
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No. 42. Notes upon various Species of Iridaceze and other Orders. By Thoma 
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No. 43, Notes on the Flora of Southeastern Kentucky. By '. H. Kearney, Jr. 
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No. 45. Studies in the Botany of the Southeastern United States, 1. By John K. 
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No. 46. Plants from Virginia, new to Gray’s Manual Range with Notes on other 
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No. 47. New or Noteworthy North American Phanerogams, VIIL. By 'N.L. Brit- 
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No. 48. Contributions to American Bryology, V.—Notes on the North American 
Species of Wetssia (Llota). By Elizabeth G. Britton (1894), 25 cents. 
No, 49. A Study of the Scale-characters of the Northeastern American Species of 
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No. 50. A Study of the Genus Psoralea in America. By Anna Murray Vail 
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No. 52. Contributions to American Bryology, VI. Western Species of Orthotrichum. 
By Elizabeth, G. Britton (1894), .. .. . | 25 cents. 
No. . New and interesting Species of Polygonum. By John K. Small (1894), 
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No. 54. Contributions to American Bryology, VII. A revision of the ie Phys- 
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No. 55. The Genus Cassia in North America. By Charles Louis Pollard (1894), 
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No. 56. A Revision of the Genus hachéa. By N. L. Britton (1894), “ae cents. 
No. 57. New or little known Plants of the Southern States. By ~ EB Kearney, Jr. 
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No. 58. A Contribution to the History of the Formation of the Lichen Thallus. By 
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No. 59. Studies in the Botany of the Southeastern United States, II. By John K. 
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No. 60. Contributions to the Auction Bryology, VIII. A Revision of the Genus 
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No. 61. The Smilacez of North and Central America. By Thomas Morong (1894) 
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No. 62. A preliminary Revision of the Genus Lathyrus in North America. By 
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The series as above listed will be supplied for $10. 
Copies of the Catalogue of Plants found in Ne tt 
dur be hades Oh w Jersey (1889) by N. L. Britton, 
Address 
PrRor. N. L, BRITTON, 
Columbia College, 
NEW YORE CITY. 
