The Story-Book of the Fields 



fuel so as not to spoil its whiteness. The 

 powder, which resembles fine flour, is diluted 

 in water and reduced to a clear solution, 

 which is poured into the moulds. As soon 

 as the plaster has hardened, the mould, con- 

 sisting of several pieces, is removed, and the 

 object which has been moulded is extracted. 



J3* 



