REVIEWS AND BOOK NOTICES. 43 
seas which lie beneath them, where living things unknown to 
warmer climes congregate in unimaginable multitudes. There is 
life all over the solid earth; there is life throughout the vast 
ocean, from its surface down to its great depths, deeper still than 
the lead of sounding line thas reached. 
And it is with these living hosts, unbounded in their variety, 
infinite in their numbers, that the student of biology must make 
himself acquainted. It is no light task which lies before him — 
no mere pastime on which he may enter with trivial purpose, as 
though it were but the amusement of an hour; it is a great and 
solemn mission to which he must devote himself with earnest 
mind and with loving heart, remembering the noble words of 
Bacon : — 
“ Knowledge is not a couch whereon to rest a searching and 
restless spirit; nor a terrace for a wandering and variable mind 
to walk up and down with a fair prospect; nor a tower of state 
for a proud mind to raise itself upon; nor a fort or commanding- 
ground for strife and contention; nor a shop for profit and sale; 
but a rich storehouse for the glory of the Creator, and the relief 
of man’s estate. 
REVIEWS AND BOOK NOTICES. 
Tur Systematic Position or THE Bracurtorops.* —To those ac- 
customed to find the Brachiopods invariably mentioned in palæon- 
tological as well as zoological works as shell-fish, with no hint of 
an affinity to any other class of animals, the author’s remark at 
the beginning of his essay that ‘‘ the Brachiopoda are true worms, 
with possibly some affinities to the Crustacea, and that they have 
no relations to the Mollusca, save what many other worms may 
possess in common with them,” will seem in its nature somewhat 
iconoclastic. But we should remember that Cuvier regarded the 
barnacles as Mollusca, and it was not until 1830 that Thompson 
and Burmeister demonstrated from their mode of growth that these 
shell-bearing animals were undoubted Crustacea; the Serpule and 
pirorbes were regarded as shell-fish by many collectors, and even — 
*The Systematic Position of the Brachiopoda. By Edward S. Morse. (From the 
of the Boston Society of Natural History, xy. Published August, 1873. 
Svo. pp. 60.) 
