314 



MEMORANDA. 



hairs similar to those of the flap ol the Fly ; the wing of this 

 insect possesses hooklets. 



No. 1. 



No. 1. — Hairs of Curculio Beetle, a, a, a, shaft of hair; 

 b, b, b, expanded ends. 400 diameters. 



No. 2. — Leg of Cymhex lutea. a, b, c, d, cushions at each 

 joint. 24 diameters. 



No. 3. — Enlarged view of c, showing hairs on the under 

 surface. 110 diameters. 



No. 2 



John Hepworth, Croft's Bank, May 31, 1855. 



On Finders. — Contributors to these Notes have suggested 

 many successful contrivances for indicating the exact position 

 of an object in a slide, but they all involve an amount of 

 complex arrangement which is inconvenient in their practical 

 application under a moderately-high power. A small, narrow 

 ring, painted round the object on the surface of the thin glass 

 cover with Prussian blue water-colour, will at last prove the 

 most serviceable, because it can at once be seen, when in the 

 field, without altering the focus, and more readily than a ring 



