Botany and Zoology. 425 
with a systematic arrangement, the names of authors with Ranney 
titles being ee according to subjects. : 
a : Flora Brasiliensis ; fasc. x.—We stated on —_ 44 of 
this seca te this valuable work was likely to go on, now that the 
great Historia Palmarum is finished; but we were not aware that a new 
part was just then issued; this fasc. x, bearing the date of Oct. 1, 1851. 
It contains the Brazilian Verbenacea, elaborated by Prof. J.C. Schauer, 
who worked up the same family for De Candolle’s st omus. 
occupy 138 pages, and are illustrated by 30 plates (folio), be he in 
the same superior style as those of the preceding paris. There are 
besides four more of Martius’s Tabule Physiognomice, most beautiful 
illustrations of some of the richest tropical vegetation of ae — 
4. Zoological Notes from the Correspondence .of Prof. ee (od 
thea to J. D. Dana, and dated Charleston, wants Carolina, Jan. and 
b. 1852. 
Genus Tiaropsis. sigdecral interesting Meduse have been already 
observed by me here, and among them, the entire metamorphosis ‘and 
alternate generation of a new species of my genus Tiaropsis. Here 
as well as at ak iggy I have found ‘Tiaropsis “g be the free Med 
of a a: Camipars 
Distoma. The deficiency 1 can now fill. It is another eae 
genuine Opalina. With such facts before us, there is no longer ns 
doubt left respecting the: character of -all <i 9 hig go they a 
the earliest lary al condition of worms. _ And el have iegisined 
Kingdom. ay whatever name and whatever circumscription, it has 
ap be retained to this day, the Class of Infusoria ts now 
entirely Lissaloed, and of Ebrenberg’s remarkable investigations, wn 
descriptive details vers can be available in future ; ; the whole system 
atic arrangement is gon 
This result has seiahat interesting bearing: for it shows the cor- 
rectness of Blanchard’s view respecting the EN etd close rela- 
tion to the Intestinal worms penis the nam ac Trematoda. Indeed 
they belong to one and the same natural grou 
Is it not remarkable that the tivo: types of Hib Animal Kingdom long 
considered as the fundamental supporters of the ¢heory of spontaneous 
generation should have finally been brought into so close pa ; 
and that one of them—the Infusoria— should in the = turn out to be 
Sconp Serres, Vol. XIII, No. 39,—May, 1852. 
