Cited by Order-Book of the Cambridge Scientific Instrument Company (Dec. 1884-28 July 1887)
Description:

'1885... No. 4.

H. E. Wingfield. Caius College.

Statn. Va o[p?]tic Balancd tung

Obj A.D.

Ocular 2 & 4' - This crossed through, and 'Cancelled. see page 2.' written over it in red ink. (ff. 1)

 

'1885 No. 5. H.E. Wingfield. Caius College.

1 Statn IV

Objective A.D.

Ocular 2. 4.

Revolver No. 100.

Mr H.E.W. will take whichever comes first.'

'Delivered Jan 9/85' next to this in red ink. 'Invoiced Jan 9th' in brown. (ff. 2)

 

Cited by W.J. O'Connor, British Physiologists 1885-1914: A Biographical Dictionary (Manchester; University Press, 1991).
Description:

p. 23.