29/36 We have scarcely had any variation in the tint in the last week." "That is not your fault," answered Marietta. "We will try the next." As if she had been at the work all her life, she chilled the ladle and chipped off the small adhering bits of glass from it, and slipped the last test from the table, carrying it to the refuse jar with tongs. Once more she wrapped the damp cloth round her hand and went to the furnace. Nella, looking on with nervous anxiety, was in a profuse perspiration. |