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Double windmills. Two sets of four brass vanes on an axel with a leaf spring connected to it, on a brass and wooden stand. The vanes are facing the direction of rotation on one set and are twisted away from it on the other set.

Demonstration of air resistance. Double windmill each with 4 vanes : first set vanes fixed perpendicular to direction of motion; second set of vanes can be rotated individually around axis of support arm to give range of resistance from…

Tags: Case 8, Copland

Dr James Fraser

3/4 portrait of James Fraser, seated and facing right, with head towards viewer. Long grey periwig, wearing brown coat, white cravat, floppy lace cuffs and a tan waistcoat. Left hand holds book on table with spine up on a green drape background.…

Dr. Lorimer's dipping compass. An octagonal wooden box from out of which projects four intersecting brass rings perpendicular to each other and incised with degree scales. Suspended in the innermost ring, which is oriented upright, is a needle which can rotate freely inside the ring.

Instrument for showing that a compass needle not only points to magnetic north but if freely suspended will point into the ground. This later phenomenon is known as the 'dip' of the compass needle. Horizontal scale 0 -90 in 1/20 on either side of N…

Tags: Copland

Dracula. A paperback copy of the novel Dracula by Bram Stoker, with an illustration of a vampire surrounded by purple smoke on the cover.

Novel 'Dracula' by Bram (Abraham) Stoker. First published 1897, this edition Puffin Classics 1986.

Tags: Case 38

drawer of items

Small wooden drawer of miscellaneous items including brass tweezers, rotating aperture selector, eyepiece, a lens and screws. Drawer has an ivory handle and used to hold slides or lenses as grooves set in wood.

drawers of lenses

Wooden set of 8 drawer, 4 of which have dividers with grooves for holding lenses. The drawers hold a large variety of lenses; over 200 lenses in total as well as mirrors, diffraction gratings, a liquid prism and a lens power tester.

Drawing depicting a coastal scene. A canoe is visible at lower right foreground with hills visible at left middle ground and mountains in the background.

Drawing depicting a large tree with a large amount of roots.

Drawing depicting a man wearing only white trousers carrying a pole across his right shoulder. Coconuts hang from both sides of the pole. The man in walking through a jungle with palm trees. A village with houses in front of a mountain is visible in the background.

Drawing depicting a view of an interior of a cave looking towards the entrance. Stalactites are visible from the ceiling. A figure is visible in the far distance.

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