IXXX PROCEEDIXGS OF THE 



the plants in tlie Pisa Botanic Garden. Nuov. Giorn. Bot. Ital. 

 Pisa, iv. 



D. Colladon. The effects of lightning on trees and woody plants, 

 3 plates. Mem. Soc. Phys. Hist. Nat. Geneva, xxi. 



A. Costa. On the secretion of honey-dew from the leaves of 

 Rosa Banksice. Proc. R. Acad. Se. Naples, iv. 



E. Delarue. Observations on the phyllomorphosis of Syringa 

 vulgaris, woodcuts. Bull. Soc. Imp. Nat. Moscow, 1872. — On the 

 histology of the medullary rays of Conifers. Bot. Zeit. 1873. 



J. C. Draper. On the growth or evolution of structure in seed- 

 lings (from Amer. Joura. Sc). Ann. Nat. Hist. Ser. 4, xi. 



P. Duehartre. On the bulb of the Lily. Ann. Sc. Nat. Bot. 

 Ser. 5, xvi. — On the structure and multiplication of the bulb of 

 Lilium Thomsoniamim. Bull. Soc. Bot. France, xix. 



J. Duval-Jouve. On some tissues of Junce83, Cyperaceae, and 

 Graminese, 1 plate. Bull. Soc. Bot. France, xviii. 



W. T. Dyer. On Tyloses, the cellular filling up of vessels, 1 plate. 

 Journ. Bot. 1872. 



A. Engler. On monstrous flowers of Barharea vulgaris, 1 plate. 

 Flora, 1872. 



A. Ernst. Development of the leaves of Hudrocleis nympJioides. 

 — On the swelling of the immersed part of the stem of JEschynomene 

 Mspidula. Bot. Zeit. 1872. 



C. Fermond. Philosophical considerations on double flowers. 

 Bull. Soc. Bot. France, xix. 



A. 11. Frank. On transversal geotropism and heliotropism in 

 plants. Bot. Zeit. 1872. 



E. V. Freyhold. On peloria in Tropoeohmi aduncum, 1 plate. 

 Bot. Zeit. 1872. 



K. Fritsch. On the absolute variability of the time of flowering 

 of plants. Proc. Imp. Acad. Sc. Vienna, Ixiv. 



A. Godron. Miscellanies of Vegetable Teratology. Mem. Soc. 

 Sc. Nat. Cherbourg, xvi. 



A. Gris. On the pith of woody plants, 9 plates, Nouv. Archiv. 

 Mus. Paris, vi., and Ann. Sc. Nat. Bot. Ser. 5, xiv. — On the move- 

 ments of stamens in Parnassia palustris. Mem. Soc. Se. Nat. Cher- 

 bourg, xvi. 



J. Hanstein. On the development of the germ in Monocotyledons 

 and Dicotyledons, 18 plates. Hanst. Botan. Abhandl. i. 



Hasskarl and others. On Cinchona bark from Java, several 

 papers in ' Flora,' 1872. 



