10 98 Proceedings of the Royal Irish Academy. 



Candolle, Alphonse de : 



G^ographie botanique raisonnee, i-ii. 8vo. Paris. 1855. 

 Origine des Plantes cultivees. 8vo. Paris. 1883. 

 Candolle, Augustin Pyramus de : 



Physiologie Vegetale, ii, p. 620. 8vo. Paris. 1832. 

 Candolle, Casirnir de : 



Sur la vie latente des grains. Bibl. Univ. Archives des Sciences Phys. et 

 Nat., (3) xxxiii, pp. 497-512. Geneve. 1895. 

 Clark, George H., and James Fletcher : 



Farm Weeds of Canada. 8vo. Ottawa. 2nd ed. 1909. 

 Colgan, N. : 



Notes on Irish Topographical Botany, with some remarks on floral diversity. 

 Irish Nat., x, pp. 233-240. 1901. 

 Colllnge, W. E. : 



The feeding habits of the Piook. .Report to the Council of the Land Agents' 

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The parachute effect of thistledown. Science (N.Y.), N.S., xxii, pp. 568-572. 

 1905. 

 Darwin, C. : 



The Origin of Species by means of Natural Selection. 6th ed. London : 



Murray. 

 The Life and Letters of Charles Darwin . . . Edited by his son, Francis 



Darwin, vol. i-iii. 1887. 

 More Letters of Charles Darwin . . . Edited by Francis Darwin, vol. i-ii. 

 1903. 

 Dewey, L. H. : 



Migration of Weeds. Yearbook U.S. Dept. of Agric, 1896, pp. 263-286. 



Good general paper. 



Dingler (Hermann) : 



Die Bewegung der pflanzliehen Flugorgane, ein Beitrag zur Physiologie der 

 passiven Bewegungen im Pflanzenreich. 8vo., pp. 10 + 342. Taf. i-viii. 

 Miinchen : T. Ackermann. 1889. 

 Dreyer, A. : 



Yerbreitung und Zahigkeit der Unkraiiter. Festschrift fur A. Orth., pp. 14-20. 

 Berlin. 1905. 

 Dunn, Stephen Troyte : 



Alien Flora of Britain. 8vo. London. 1905. 

 Duval-Jouve, J. : 



[Letter on discovery in Brittany of Coleanthus subtilis.] Bull. Soc. Bot, de 

 France, xi, p. 265. 1864. 



