Miscellaneous Intelligence. 323 
sion in the progress of life on the globe is one of the great objects 
of geological inv pana tign, and is daily being furthered by new 
accessions of facts; but we think it too soon to make out 2 genealog- 
ical trees with the “detail ationinted by the authorities followed in 
this work. He has s high authority for tracing the vertebrates down 
to the Ascidians ; but we believe, with Prof. Ferrill, the conclusion to 
be based on a wrong idea of the structure of the latter class of 
animals, There is much that is rei go in the work ; yet there 
appears to us to ss too many “no 6 urs” satisfy es 
science. The volume has, as its fro ntispiece, a map entitle 
“ Hypothetical Sketch of the Monopbylitic Orig and of the Diff. 
sion of the 12 varieties of Men from Lemuria over the Earth” 
(“ Lemuria” being the supposed birth-continent of man, so name 
by Sclater from t the Lemurs of Madagascar and the Indian Archi- 
or, TyNpatt’s works.—The recent visit of Prof. T 
dall to the United States has naturally excited a fresh interest 
in his works. Messrs. Appleton have published the following 
works of Prof. Tyndall. 
Heat as a shee of motion. 1 vol, 12 
Il. On Sound. A course of eight lectures delivered at the 
Royal Institution of Great Britian. 1 vol., 12mo. 
II, Fragments of Sueste for Unscientific “Peopie: A series of 
detached es essays, lectures and rev ~~ vol., 12mo. 
IV. Light and Electricity. Notes on twa courses = —- 
before the Royal Institution of Great genre ee Maem 
ot of oe in the Alps. | 1 vol., 
adiatio: The “Rede” pie Sarg evaed in the 
oe House petbee’ the University of Cambridge, England gete. 
vol, 
L Sots s of Water, in Clouds, Bain, — Ice and Glaciers, 
with a portrait of the author. 1 vol. 
. Contributions . Molecular Physics in the dems. ee 
Radiant Heat. 1 vol, 8v fear 
