It was for him to make a note of these persons.

A diagram of the court as it looked to him at that moment is shown for your enlightenment.
[Illustration: 1--Ephraim Short.
2--Mrs.Lynch.
3--Director Roberts.
4--Door-man.
5--Copyist.
6--Mrs.Alice Lee.
7-8--Mr.and Mrs.Draper.
9--Mr.Coit.
10--Mr.Simpson.
11--Prof.Turnbull.
12--Second Door-man.
13--Miss Hunsicker.
14--Attendant.
15--Miss Blake.
16--Officer.] Sixteen persons! Ten in view from the steps and six not.

Of the sixteen, only the following seemed to afford any excuse for future interrogation: Numbers Two, Six, Ten, Seven, Eight and Thirteen.

Making a mental note of these, during which operation the poor unfortunates who had just been considering themselves as quite out of the game revived in a startling manner under his eye, he proceeded on his way.
As the action has now shifted to the upper floor, a diagram of this second story is now in order.
As you will see, a straight glimpse is given down either gallery from the arches opening into the broad corridor into which Mr.Gryce had stepped on leaving the central staircase.

He had therefore only to choose which of the two would better repay his immediate investigation.
He decided upon the northern one, which you will remember was the one holding the tapestry; since, to find anybody there, no matter whom, would certainly settle the identity of the person responsible for that flying arrow.