XXXll PROCEEDrNGS OF THE 



T. Meehan. Yarions morphological and physiological notes. 

 Proc. Acad. Nat. Sc. Philadelphia, 1871 and 1872. 



E. Mer, On the physiological action of frost on vegetables. Bull. 

 Soc. Bot. France, xviii. 



E. Morren. Introduction to the study of the nutrition of plants. 

 Bull. E. Acad, Sc. Belg. Brussels, Ser. 2, xxxiv. 



F. C. Noll. Two abnormal Cactus fruits, 1 plate. Rep. Senckenb. 

 Nat. Hist. Soc. Frankfort, 1871-72. 



C. A. J. A. Oudemans. On a peculiar kind of tube in the trunk 

 of the Elder-tree hitherto taken for a Ehizomorpha. Trans. E.. 

 Acad. Sc. Amsterdam, Ser. 2, vi. and Archiv. Neerl. vii. 



E. Peligot. On the repartition of potassium and soda in plants. 

 Ann. Sc. Nat. Bot. Ser. 5, xiv. 



A. Perard. Anatomy of Agropyrum ccesium, 1 plate. Bull. 

 Soc. Bot. France, xviii. 



W. Pfeffer. The influence of the spectrum colours on the pro- 

 duction of carbonic acid in plants. Bot. Zeit. 1872. — Eesearches 

 on the proteine grains and the influence of Asparagine in the ger- 

 mination of seeds, 3 plates. Pringsh. Jahrb. viii. 



K. Prantl. The most recent researches on stomata, 1 plate. 

 Flora, 1872. 



E. Prillieux. On the action of light in the blue coloration of 

 flowers. — On the Cloque disease of the Peach-tree. BuU.. Soc. Bot. 

 France, xix. 



J. T. C. Eatzeburg. Pathology of, and cause of death in trees. — 

 On the duplication of annual rings. Bot. Soc. Brandenburg, xiii. 



J. Eeinke. On the structure of the tips of roots. Bot. Zeit. 

 1872. — Eesearches on the growth and morphology of the roots of 

 Phanerograms, 2 plates. Hanst. Bot. Abhandl. i. — On the ana- 

 tomical relations of some species of Gnnnera. Proc. (Nachr.) E. 

 Soc. Sc. Gottingen, 1872. — On the rhizomes without roots of Goral- 

 lorliiza and Epipogium. Flora, 1873. 



P. A, Saccardo. On peculiar amyloid corpuscles in the pollen- 

 fovella. Nuov. Giorn. Bot. Ital. Pisa, iv. 



J. Sachs. Text-book (Lehrbuch) of Botany, 3rd edition. Pur- 

 chased. 



P. Sagot. On Yams. — On Manioc, Bull. Soc. Bot. France, xviii. 



G. de Saporta and F. Marion. On a spontaneous hybrid of Pista- 

 cia TerebintJius and P. Lentiscus. Ann. Sc. Nat, Bot, Ser, 5, xiv, 



P, Savi, On the virescence of Bellis sylvestris. Nuov, Giorn. 

 Bot, Ital, iv. 



