Ian Montgomery wrote:
> 
>         At the moment I'm still using ether to clean my
> microscope objectives. For health and safety I'd like to move
> away to some other cleaning agent. What's everyone else using?

I use the stuff the optician sells, in a little
squirty-bottle, for cleaning specs with. The
composition is undisclosed, but tactile and
olfactory analysis suggest a mixture of alcohol,
water and something similar to dishwashing liquid.

At the present rate of usage my 50 ml bottle
should, if kept only for microscope lenses, last
about 250 years.

-- 
-------------------------
John A. Kiernan
Department of Anatomy and Cell Biology
The University of Western Ontario
London,   Canada   N6A 5C1
   kiernan@uwo.ca
   http://publish.uwo.ca/~jkiernan/