“‘Cotton,’ cotton standing third in the list of fabrics.

“Then, again, if you want the color—say it is blue—

“‘Can’t you tell the color?’

“‘Blue,’ which stands third on the list of colors.

“A watch embodies a greater number of questions than almost any other article. If you want to describe it fully, it is first in the second set, the key of which is:

“‘What is this?’

“We will say that it is a lady’s watch, gold, double case, three hands, made by Tobias, No. 9,725, the initials ‘From B. C. to C. H.’ engraved on the case, the year ‘1860,’ and blue enameled, set with five diamonds. This is a complex question, and must be put and answered as follows:

Question. ‘What is this? Say.’

Answer. ‘A watch.’