BOTANY, 499 
celled structure of Actinophrys clearly described and figured. 
He remarks that “ though the cells are very distinct, they exhibit 
a low state of development, as low perhaps as could possibly ob- 
tain without failing to be genuine cells.” Farther on (p. 46) he 
claims that in this animal there are ‘ two distinct sets of tissues,” 
and speaks of an “outer layer of cells” and of a set of “ inner 
cells.” Until these parts are explained away we shall doubt the 
wisdom of the conclusions of the German observer, and call in 
question the naturalness of his classification of the animal king- 
dom into one-celled and many-celled animals. It seems less nat- 
ural than the old division into vertebrates and invertebrates. 
SIEBOLD’s ANATOMY OF THE INVERTEBRATES.* — We have con- 
stantly used this work, having found it the most valuable book of 
reference in the language, notwithstanding the fact that it is 
twenty years behind the times, and the classification is objection- 
le. This edition is exactly the same as that of 1854. 
BOTANY. 
Dr. Bearpstze has recently published a catalogue of the plants 
of Ohio, in the preface of which he speaks of “the late M. S. 
bb, of Illinois.” As inquiries are already addressed to us upon 
the subject, we wish to say that Mr. Bebb actually and actively 
lives, and we hope the day is far distant when this appellation can 
be rightfully appended to the name of this most enterprising and 
G. 
efficient of our middle-aged western botanists. — A. 
Dovuste THALICTRUM. —A day or two ago, Mr. Whiting, a stu- 
dent, brought me a novelty in the shape of a completely doubled 
flower of Thalictrum anemonoides. The stamens were all trans- 
formed to pink petals, giving to the flower much the appearance of 
à small specimen of the double flowered form of Prunus nana. 
There was but one flower, on a solitary pedicel, otherwise the plant 
Seemed to be normal. I shall secure the root if possible, and hope 
to perpetuate this very pretty sport. Is this doubled pink form 
common? — C. E. Bussey. 
Dr. W.G. Fartow, a valued contributor to the NATURALIST, 
has returned to Cambridge, after two years’ study of lower crypt- 
ta. ByC 
8vo, and notes by Waldo I. Burnett, M.D. Boston, 1874. James Campbell, 
PP. 470. $5.00. 
