Geology and Natural History. 75 
during the preceding summer, and destined to become re-trans- 
formed when it reaches the buds. The proportion, faithfully 
approaching the term of their development, are on the verge of 
sufticing for themselves. These facts are, therefore, perfectly in 
mic 
which are called upon to assist in the development of the young 
leaf are traced by means of reagents from cell to cell. Two, 
‘specially, give origin to detailed observations, namely starch and 
in. The dissemination of the former in the different sal Be 
ro-vasc 
4 confirmation of all that theory led us to foresee. As to tannin, 
tis developed in all the cells of the bud ; an i 
ie € Its appearance it persists there, without appreciable change. 
ts function has grea was 
unable to recognise in it any of the characters of an excrementi- 
Problem would, erhaps, become easier.” . @, 
oe Botany for Beginners ; an Introduction to the Study of 
Baas by Maxwext T. Masters, M.D., F.R.S. London, 1872: 
psabury, Evans & Co. Pp. 185, 18mo. A series of articles 
ae of elementary botany with admirable freshness and clear- 
ae and illustrated by wood-cuts of uncommon excellence, 
tracted our attention during the past year in the pages of suc- 
se i ; 
into this little volume e articles, it appears, from the 
_ Dr. Masters; the illustrations were contributed by Mr. 
ington § are ten chapters, or lessons. 
Vo 
frst, explaining how to begin, and starting with early spring 
OWers, is a study of a willow and poplar, followed by the ash 
snd elm. The second, tulip and eee: The third, the apple 
— <osaa » followed by the lilac compared with the ash, and so on. 
and €nd are short chapters on fruit and seeds; on seedling plants 
in Srowth; on classification description, and points to be looked to 
each organ; and finally, a particularly good one on plant life. 
