TAA i.3.23.2.recto

                            (A)

In my “Card Index” Records, M^r

Lucas adds the following note:-

“Several specimens of Gesso have

been examined: all consisted of

carbonate of lime (i.e. whiting, chalk)

mixed with glue and in no case was

there any admixture of sulphate of

lime (gypsum). Carbonate of lime

in this form possesses no adhesive

property whatever and it was in order

to make it cohere and adhere that

glue was added.”

          “The specimens of gesso examined varied 

from 0.1 mm. to 1.0 cm.”

          “In many cases a layer of coarse woven

fabric is used underneath gesso to enable

it better to adhere to the material on which