418 Becent Agricultural P^iblications. 
Frequent references to the writings of Miss Ornierod occur in the 
text. 
More than 200 pages are occupied by the worms, which are 
broadly classed as thread -worms, tape-worms, and flukes. In the 
first-named group are included the eelworms, and in the fifty pages 
which he sets apart for tlie description of these lowly organisms. Dr. 
Ritzema Bos presents a fund of valuable information upon a subject 
concerning which he is one of the first of living authorities. 
The usefulness of the book as a work of reference is enhanced 
by a full list of the animals and plants reared or cultivated by man, 
there being added opposite the name of each animal or plant the names 
of tlie pests which annoy or prey upon it, together with the number of 
Fig. .S.- Tlie Vine Louse, 1‘hiiUoxem vnsinirix (allied to the Aphides of English gardens). 
1, Under surfooe of root iouse. 5, Vine-root with galls made by 
2, Side view of sucking iouse. Phylloxera. 
3, Beak, C, Old vine-root with lice of the 
4, Winged Phylloxera. previous season. 
(1 to 4 greatly eiilargeil.) 
the page upon which it is described. In the case of the horse, for ex- 
ample, are enumerated various gnats and other flies, the horse- 
louse and scab-mite, and several intestinal worms. The enemies of 
the potato crop are seen to include rabbits, mice, voles, cockchafer 
grubs, wireworms, surface caterpillars, the death’s-head moth, Julus 
worms, snails and slugs, eelworms. Of the animal pests of the farm- 
house and farm buildings there are enumerated, amongst others, 
rats, mice, sparrows, crickets, cockroaches, granary weevils, flour 
moths, blow-flies, cheese-mites, slugs, &c. An alphabetical index of 
about 1,600 names is an additional help to the inquiring reader. 
As a guide to dwellers in the country, the author — omitting for 
this purpose any reference to insects or animals lower in the scale — 
enumerates on page 20 the following mammals and birds as always 
useful, and therefore deserving of protection, not of persecution : — 
