at 5 o'clock

Continue my logbook.

between work and bird watching, 

among the Irish countryside and Agreste Romano.

Sometimes the glass was first coated with a thin layer of
diluite albumen prior to coating, which helped the collodion
adhere to the glass.

The plate was then dipped into a bath of silver nitrate for
several minutes.
Wet collodion was also used to make positive trasparencies,

commonnly known as lantern slides, as they were typically
viewed by transmitted light using a magic lantern.

But Matte Collodion printing out prints POPs

are based on the light sensitivity of silver chloride, which

is suspended in a thin collodion binder on a paper support with

a very thin baryta layer.

A solution contaning silver nitrate was added to the collodion

chloride mixture, rendering the substance light sensitive.

Glycerin or castor oil :(  was somentimes added as plasticizer

to make the binder more flexible and permeable.

... the coated papers were contact printed under ultra-violet SUN

light.

Matte Collodion papers were coated In the same way as collodion

glass plate negative: by pouring the emulsion into the centre

of the paper and rocking it is each direction to get an even coating.

Paper were produced on a larger scale beginning in 1889 with the

introduction o coating machine.