delicately constructed little animal; and although his fur may be plainly colored, like the plumage of the sparrow amongst birds, yet it is of the finest texture, and, when possible, is always kept scrupulously clean. In solitary captivity he is continually sitting on his haunches, cleaning his fur like a cat; and the writer has found, by actual experiment, the weight of twelve full-grown, well-fed New York city rats to amount to exactly twelve and a half pounds. Formerly, in European countries, there was a general belief in the existence of strange and mysterious relations between this great slimy monster and the high-priests of witchcraft and sorcery. It was thought that this was the animal best adapted to carry out the diabolical plots of his Satanic majesty. In one part of Norway, the peasants used devoutly to hold a fast day once a year, trusting thereby to get rid of the pests of rats and mice. They had a Latin exorcism which they used on these occasions, beginning with the words, "Exerciso nos pestiferos, vermes mures," etc. Anything a rat left its trace upon was an omen of ill to the owner; and when by any chance a rat was ever seen on a cow's back the poor animal was doomed to pine slowly to death in consequence. In Ireland it was believed that premises could be rid of rats by reciting a rhyme over their holes, which was commonly called "rhyming rats to death." XVI.--REVIEW OF THE RAT, AND CONCLUSION. But since these times the people have succeeded in getting rid of a great quantity of superstition attached to the subject. It has also been learned gradually that the actions of the rat are prompted much more by natural than by diabolical instinct. However timorous and innocent looking we have found the rat to be upon impartial observation, yet his is a case of wolf in sheep's clothing, for he is the one of the whole brute creation that does the most undermining damage in every way to the homes, workshops, counting-rooms, store-houses and cultivated fields and acres of man. The rat is also at times his very ferocious personal enemy. The rat's code of morals will be found rather deficient, as we have tried to explain in the preceding rambling remarks. In fact, there are condensed in this small animal all the vices of the animal world. We have shown him in the pleasant light of a cannibal briefly making an end of all family ties by transferring his relatives down his stomach. We have traced a faint outline of his great food greediness and his intemperance in strong drink, which is pretty near up to the human standard. We have pictured his strong liking for the hot blood of man and his utterly lacking an organ of veneration, digging up man's bones from their final resting-place to have them serve as food.