Barrande— Origin of Paleozoic Species. 181 
In 1852, he commenced the publication of the large quarto 
including 107 plates, appeared in 1865, followed, in 1866, b 
h oe plates 108 to 244. The first liv- 
was followed, in 1868, by the third series of plates, including 
Nos, 245-35 
Nos. 351-460, which is named at the head of our article, ap- 
peared in 1870, accompanied by a volume of 263 pages of sup- 
Radiates; and for the final one which is to give us all the de- 
tails of the stratigraphical and lithological geology of the Bohe- 
man basin. As a whole, these volumes will constitute one of 
the grandest monuments ever erected to the energy, skill, 
np and industry of one man, as well as to the constant 
general distribution, a series of octavo pamphlets, including the 
general asi 
ney Tepresent, thus showing that his object has been purely 
the Spread of information rather than personal credit for priority. 
this series, we name one at the head of our article. He has 
480 issued four pamphlets, entitled “ Défense des Colonies,” of 
] 
Which we propose to speak further on another oceasion 
© supplementary text of the Cephatnpeds includes a thor- 
ouch study and full summary of the general and detailed facts 
of their distribution, at least so far as Silurian forms are con- 
