DODDER AND IVY.--Ivy is a climber only, Dodder is a true parasite. Ivy does not in any degree derive nourishment from the trees on which it grows. It is obvious that it cannot get any from walls. It may be plausibly disputed whether it does any injury to the trees to which it clings, for it is often seen on very large ones. It is reputed to be wholesome for sheep and deer in spite of its rank odour, and pheasants are fond of its seed. * * * * * HOW TO FORM A TEMPORARY MUSEUM. A temporary museum will, in all probability, be a Vacation- or Summer-museum; there will, therefore, be no need for stoves or fires, and scarcely any for artificial light. The sun rises in summer as early as any members of the museum committee are likely to be stirring, and by sunset it will be time to close. We will suppose, then, that the season is summer and the place a small town in the country. In the first place a small local committee of those interested in the scheme should be formed, and a small sum of money guaranteed. The next step should be to borrow a set of school premises, or hire for a couple of months an empty house. If only a small cottage were obtainable it should have a back garden in which a large wooden shed could be put up. The essentials are plenty of room, plenty of light, and good protection from weather. If the premises secured be those of a school, the next thing will be to arrange with some carpenter for the hire of a quantity of boards which, laid across the desks, will make tables. It may be possible, on similar terms, to obtain from a draper a quantity of baize, or its very cheapest equivalent, but this would not be absolutely necessary. Having secured plenty of table-space, the next point is to prepare the walls. It will be required to display on these, Portraits, Maps, Illustrations, &c., &c., and for pinning these up some sort of framework is desirable. The carpenter will soon put this together and cover it with baize or flannel. The rooms being made ready, the next step is to fill them, and about this there will be no difficulty. As a preliminary measure a circular will have been sent out, inviting all residents to contribute their curiosities on loan. It will be strange if this be not bountifully responded to by cases of stuffed animals and birds, collections of eggs and of shells, and boxes of minerals. Ammonites, elephants’ teeth, mammalian skulls, butterflies, wasps’ nests, flint implements, and Missionaries’ curios will be brought in great abundance. All these, properly arranged, with descriptive labels, may be made most interesting and instructive. A certain number of glass-covered display-cases, with locks, will now be required in order that fragile or valuable specimens, and especially those on loan, may be properly taken care of. Such cases may be made inexpensively, and our Haslemere Museum will be glad to supply patterns, or even, if wished, to loan the cases themselves.