Cited by Order-book of the Cambridge Scientific Instrument Company (1880-1884)
Description:

'Feb. 15 [1883]. Miss A. Johnson.

1 Smith & Beck dissecting microscope No. 330 in Beck's catalogue.

1 each Steinheil aplanatic lenses 12. 8. 6. lines respectively.' (f. 74)

 

'Apr. 14 [1883]. Miss A Johnson.

To repair a Steinheil lens.' (f. 86)

 

'Oct. 14 [1884]. Newnham College (by Miss Johnson.)

1. Incubating apparatus without regulator.' (f. 148)

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

'414. Dec. 15 1885. Miss Johnson, Newnham Laboratory.

1 each Zeiss Aplanatic Lenses 8. 12. 16. must be deep.

To Repair Large Spectroscope.'

 

'37. Feb. 4th 1886. Miss Johnson. Newnham Laboratory.

Camera Lucida. No 71. and adapting same to microscope.'

 

'161. June 7 1886. Miss Johnson. 

To repair a Clockwork Drum.'

 

'Oct. 26 [1886]. Miss Johnson. Newnham Laboratory.

New spiral winding spring and repairs to Caldwell Microtome.'

 

'XIV. Jan. 17 1887. Miss Johnson. Newnham Laboratory.

per Miss Greenwood.

1 Wippe Communtator

1 Muscle Forceps.'

 

'172. June 1 [1887]. Miss Johnson. Downing Laboratory.

New Binding Screw to Induction Coil.'