110 Analysis of Scientific Books. 
** Sous le rapport de la composition chimique ou anatomique,” 
(he is speaking of organic fossils.) J’ai divisé les corps organises 
fossiles ; A. en ceux qui n’ont éprouvé aucun changement dans leur 
tissu, dans leurs compositions chimique et mineralogique; B. en 
ceux qui ont perdu seulement et entierément la matiére animale; 
C. ceux qui ont la méme composition chimique moins la matiére 
animale, mais qui ont perdu de plus leur structure et leur forme; 
D. ceux qui n’ont perdu que la partie organique, mais dont la por- 
tion inorganique a pris une disposition toute différente de la Spathifica= 
tion E. qui ont éprouvé des changements dans la tissu anatomique 
et dans la composition chimique, méme dans I‘acide du sel terreux 
qui les fermait ; F. ceux qui n’ayant rien perdu dans la structure 
organique. ont été entiérement changés dans la composition chimique; 
de la Petrification: G, fossiles qui sans avoir éprouvé de modifica- 
tions ont été imprégnés d’une substance metallique ; de U' Impregna- 
tion ; H. des corps incrustés ; I. des corps succinisés,” 
This reminds us of a modern Act of Parliament: a trap set to 
catch all the modifications of possibility, and somewhat more; but 
which is still so ill-constructed, that lawyers, rats, and criminals con- 
trive to escape it. 
A German engrafted on a Parisian, forms a heteroclite-enough 
animal; somewhat, we should conceive, like Monsieur Blaiiville’s 
own paleobalistums and paleorynchuses. But such is the conse- 
quence of going to school at Freyberg. We thought that the Pope 
had been dead, for, like his namesake in John Bunyan, his nails had 
been pared some time ago; but it seems that his ghost still walks. 
The earth, says our author, is divided and subdivided. This is 
highly instructive ; and firstly of the second, which are the organi- 
ferous strata, and of which the subdivisions are thus stated. We 
would have translated this logical and luminous passage for the 
benefit of our English readers but we want words. The divisions in 
French therefore are, ‘‘ lre. ‘Terrains zootiques les plus antiques, trés 
antiques et antiques: 2me. Terrains les plus ancicns, trés anciens, et 
anciens: 3me. Terrains modernes, comme d’alluvion, des tourbiéres : 
and lastly, 4. Terrains recens ou terrains meubles et couches super- 
ficielles.”” We have condensed the quotations, and hope they are the 
more intelligible. As to the first or the grand division, it is zootique 
and azootique. It is a fine thing to understand Greek and Logic; 
and the author’s positive, comparative and superlative, antic and 
ancient strata, remind us of the ‘‘ heavy not particularly light,” and 
the * intermediate between hard and semi-hard inclining to the soft,” 
with the “ scopiformly divergently radiated,” and so forth, which 
argue the metaphysical aud delicate profundity in language and 
thinking, which distinguishes another of the luminaries of this science. 
But we have said enough of this author’s general views, and must 
give a few specimens of his details. Of these, after the geological 
