Experts of the United States fish commission have made a special study of the conditions under which oysters grow, and, to illustrate the adaptability of the mollusks, they have got together a very curious collection of objects. It comprises oysters growing upon a great variety of things, such as old boots, rubber shoes, beer glasses, and even a lantern. There is a broken bottle inside of which, as well as on the outside, oysters have found a home.

And, oddest of all, there is an upper set of false teeth to which an enterprising oyster is firmly attached.

The history of this last oyster is decidedly interesting. About four years ago it was raked out of the waters of Chesapeake bay by a dredging boat, together with the false teeth to which it was firmly fixed, and teeth and oyster were acquired by a hotel keeper at Cowart, Va., whose wife forwarded them to the Smithsonian Institution at Washington. The matter obtaining some advertisement, a man named Webster, residing in Bedford, Iowa, claimed the teeth, saying that he had lost them from a steamer bound for Norfolk.

The Smithsonian officials were undecided at first as to whether they should surrender the teeth or not, the object being so great a curiosity that they were anxious to hold on to it. But not many days later a Philadelphia woman claimed them, asserting that they were hers, and actually a third party, visiting the institution, demanded them, declaring that he recognized them as having been lost by himself.

Probably, from first to last, a good many persons have lost their false teeth overboard in the Chesapeake, the waters of which are liable to be pretty rough at times. Any way, the government scientists did not care to decide the dispute, and concluded to retain the specimen.

The marsh mongoose has been widely credited by local people with employing a very bizarre subterfuge to catch birds. The story would seem quite outlandish were there not corroborative evidence for the behaviour pattern, even if not for its alleged purpose. My captive female occasionally would sun-bathe lying on her back, in which position her pale pink anal area assumed a quite startling prominence against the surrounding fringe of dark fur. This display is claimed to induce birds (including the locals' chickens), to approach and peck at the anus, whereupon the mongoose seizes the bird.

When approached by a threating presence, the mongoose makes a low growl, which may be reinforced by sudden explosive barking growls in a deeper tone. When the mongoose is cornered or distressed, it ejects jets of foul brown fluid from its anal sacs.