LINK ON CELLULAR TISSUE. 211 



avoids. In a small lobby, opening into the garden, there is a little 

 cupboard in the wall, about a yard from the ground. I once saw the 

 jackdaw enter this cupboard, and, with great labour, drag out a bunch 

 of large keys, which he threw down to his friend Mag, who was wait- 

 ing below. Jack then descended, and the two together worked in 

 good earnest at pulling the keys into the garden, no doubt intending 

 to hide them, had I not stopped their proceedings. This jackdaw fre- 

 quently hid himself in a dark corner by the larder door, waiting 

 patiently until the cook came to open it; he would then try to slip in 

 unperceived behind her, and hide himself behind a large cheese-pan, 

 in hopes of being left am.ong the good things. 



I once had a magnificent cock pheasant in the same manner ; he 

 was as tame as the magpie, but not so amusing or cunning. I also had 

 a thrush who was perfectly tame ; he would wade up to his neck in a 

 little pond of gold fish, which was under the branches of a large mul- 

 berry-tree, for the purpose of getting the fruit that fell into it. In short, 

 I have not met with any bird in whom kind treatment would not give 

 rise to tameness and affection. 



Aprils, 1333. 



ON THE CELLULAR TISSUE OF PLANTS. 



BY PROFESSOR LINK, OF BERLIN*. 



THE tissue of cells in plants consists of small membranous 

 vesicles, very variable in form. There is nothing of a fibrous nature 

 perceptible in them; and M. Mirbel, (Exposition de la Theorie, 

 p. 5859), and M. Sprengel (Anleitung z. Kenntnis d. Gewachse, 

 Halle, 1802, t. i. p. 92), are right in rejecting the common opinion, 

 that all is evolved from fibres that exist throughout. Such as are 

 unprejudiced, will agree with these two naturalists in considering the 

 membrane as the primordial substance of vegetables, and, I may add, 

 of all organised bodies. These vesicles, which compose the tissue of 



* Translated by Miss H. G , Lee, Kent. 



p2 



