Hi Linda!

For height and depth you can do as well by laying the shell on
(plasticated) graph-paper. I do this for (archaeological) oysters etc
(for some reason I never get many scallops!) and the measurements are
easily reliable at 1mm. This means you can concentrate on getting the
"best" calipers to do the "fatness" - which is by far the hardest
measurement to do accurately.

Liz





Dr Liz Somerville
Sub-Dean (Academic Affairs)
School of Biological Sciences
University of Sussex
Falmer
Brighton
BN1 9QG

PLEASE NOTE CHANGE OF PHONE NO TO DIRECT LINE

Tel: 01273 877460 As an internal no: 7460

(My old internal no. should be valid for another couple of months.)

email:[log in to unmask]