as are those of dicho- value of any considerable number of such abnormali- give absolute security. In the device represented ties in a synopticcollection of natural history specimens, tomy, but are probably morecommon. Among them herewith the nut and bolt are rendered interdependent are cases of… … DEVICE TO PREVENT THE UNSCREWING OF NUTS. rary, since there is no vestige of spurs upon the tarsi. It is a true “sport” of a most unusual character, since rarely, if ever, have there been observed animals in logical museum, and their study throws some little formed in the head of the bolt, while…
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