267 
The structure, as demonstrated by the microscope, is undoubt- 
edly vegetable and the author finally says : “The study of the great 
tubes of Daemonelix, made possible by the recent discovery of per- 
fectly preserved specimens, threatens to make radical, if not revo- 
lutionary change—removing Daemonelix altogether from the do- 
minion of the algae and exalting it to that of the dicotyledons,” 
A. H. 
Stratigraphy and Paleontology of the Laramie and related Forma- 
tions in Wyoming. By T. W. Stanton and F, H. Knowlton. 
Bull. Geol. Soc. Am. 8: 127-156. F. 1897. 
How the Laramie formation should be limited and defined has 
been a burning question with geologists for more than a quarter 
ofa century. Numerous local sub-divisions have been included 
or withdrawn, and the limits expounded or contracted by one 
‘authority or another, and its position in the geological column 
has been shifted back and forth between the Cretaceous and Ter- 
tiary periods. 
The authors have wisely avoided depending upon one class of 
evidence only in drawing their conclusions and have drawn freely 
from both invertebrate palaeontology and palaeobotany, in trying 
to determine the relative ages of the several beds and the limits of 
what should be called the Laramie formation. Apparently the 
formation is defined by the authors as lying between the highest 
marine Cretaceous beds of the Rocky Mountain region at the base 
and including the lowest of the Fort Union plant beds : the 
ACH. 
summit. 
The American Fruit Culturist. By John J. Thomas. 20th edition, 
revised and enlarged, by Wm. H. S. Wood. fos 
A timely book, sure to receive a hearty welcome. First writ- 
ten about thirty years ago, editions have quickly succeeded ana 
another until the twentieth, now under consideration. It isa handy 
volume of less than 800 pages, presenting in a condenses, — 
always clear and practical form, a survey of the whole field of — 
fruit culture, from the pineapple, banana and Pas of ecm 
tropical Florida, to the many common small fruits of northern 
gardens. The only two omissions noticed are the almond _ ; 
olive which have, perhaps, as good a claim to gn ve a | 
