302 REVIEWS. 
Prof. J. S. Newberry and Mr. Worthen, second, the plants by Prof. 
L. Lesquereux. 
In the 2d volume of the survey, Messrs. Newberry and Worthen 
described and figured one hundred and eighteen species of fossil 
fishes, and in this present volume they add descriptions and figures 
of thirty-two new species and four new genera, “ embracing some 
of the most remarkable forms yet found in the Carboniferous Sys- 
tem” while investigation is being continued on a mass’of speci- 
mens that will probably “add at least fifty or sixty more species 
to the list,” making a total of over two hundred species of fishes 
from the Carboniferous System alone, “showing that the western 
localities of Coal Measures and Lower Carboniferous limestone 
strata, are far more productive in this interesting group of fossils 
than any other portion of the earth’s surface hitherto explored.” 
In Prof. Lesquereux’s report on the fossil plants, after describ- 
ing the species that have been discovered since the publication of 
the second volume of the survey, and giving a systematic table 
of two hundred and fifty-six species of fossil plants from the Coal 
Measures of Illinois, he states that the list of species “is more 
than double that given in the second volume, and that of the re- 
cently discovered species, seventy-nine are considered as new, and 
forty, though known already from Europe, had not been recog- 
nized before from our American Coal Measures.” 
Prof. Lesquereux, in concluding his report on the plants, gives a 
very interesting account of the ‘ Mode of Preservation of Vegeta- 
ble Remains in our American Coal Measures” which is of such 
general interest that we shall reprint it in full in the NATURALIST. 
He also devotes a number of pages to “ The Flora of the Car- 
boniferous Measures of Illinois, considered in some of its affin- 
ities” and to “ The Stratigraphical and Geographical Distribution 
of the Fossil Plants of the Coal Measures.” 
The thirty-one plates illustrating the paleontological portion of 
the volume are engraved in a very superior manner by the Wes- 
tern Engraving Company, from drawings made by Prof. Lesque- 
reux, Prof. Newberry and Mr. C. K. Worthen, and the whole exe- 
cution of the volume is most creditable in all its departments. 
From the letter of the Director of the survey, transmitting the 
manuscript to the Governor for publication, we obtain the gratify- 
ing intelligence that the manuscript for the fifth volume is ready 
for the printer, and the plates for the engraver; and that the 
