IIO THE AMERICAN NATURALIST. [Vor. XXXIX. 
Vol. ı of the Memoirs of the Horticultural Society of New York, 
issued late in 1904, is devoted to the important Proceedings of the 
International Conference on Plant Breeding and Hybridization held 
in New York City in October, 1902. 
Part 3 of the third series of Minnesota Botanical Studies contains 
the following articles: — Lyon, *'The Embryogeny of Ginkgo"; 
Leavitt, “Observations on Callymenia pAyllophora? ; Warner, “ Ob- 
servations on Zndocadia muricata”; Mueller, “Observations on 
Laminaria bullata”; Howe, “Minnesota Helvellinez "; Polley, 
* Observations on Physalacria inflata”; and Freeman, “ Symbiosis 
in the genus Solium.” 
The Ohio Naturalist, November: — Kellerman and Gleason, “ Notes 
on the Ohio Ferns”; Schaffner, “Leaf Expansion of Trees and 
Shrubs in 1904”; Gleason, “A New Sunflower from Illinois ” ; 
Schaffner, “Twigs of the Common Hackberry,” and “Six Mutating 
Plants.” 
The Plant World, October : — Safford, “Extracts from the Note- 
Book of a Naturalist on the Island of Guam — XXIII”; Barrus, 
“Pussy Willows”; Barrett, “Tanier, the Oldest Crop ». Atwell, 
“Propagation by Petiole Buds”; Schneck, “ Hybridization in the 
Honey Locust.” 
Rhodora, October : — Fernald, “ The American Representatives of 
Pyrola rotundifolia” ; Hoffmann, “ Notes on the Flora of Berkshire 
County, Mass.” ; Knowlton, * Notes on the Flora of Day Mountain, 
Franklin Co., Me.”; G. E. D., “The Death of William Wendte” ; 
Waters, “ Asplenium ebeneum proliferum”; Day, "uncus effusus 
compactus in N. H.”; Chamberlain, “ Plantago elongata in Mass.” 
Torreya, October :— Underwood, “The Early Writers on Ferns 
and their Collections — III”; Murrill, “A New Species of Poly- 
porus from Tennessee”; Britton, “The Florida Royal Palm ui 
Berry, *Otto Kuntze on Sequoia." 
Torreya, November :— Harper, “ Two Hitherto Confused Species 
of Ludwigia”; Murrill, “ A Key to the Perennial Polyporacez of 
Temperate North America”; Gleason, “ Additional Notes on South- 
ern Illinois Plants”; Cockerell, “ Hymenoxys insignis”; Britton, 
“ Rhynchospora Pringlei” ; Shafer, “ Notes on Cuban Plants ”; Grant, 
“A Peculiar Pea Seedling "; Millspaugh, “ A New Bahaman Euphor- 
bia”; E. G. Britton, “The Effect of Illuminating Gas on Trees and 
