(b) A man stands at the point where contour 680 crosses the road followed in above problem, just south of hill 707.  Where does the roadbed first become invisible?

* * * * *

MAP:  GETTYSBURG—–­ ANTIETAM (HUNTERSTOWN SHEET).

First Problem:  A Connecting File—­Situation I: 

The Harvard Regiment is in camp in hostile country the night May 1-2 in the corn field 1000 yards east of Boyd S.H., just northeast of cross roads 488.  The line of outguards extends approximately through Boyd S.H., Hill 527, McElheny.

At 1.00 a.m.; May 1st, the regimental commander receives the following telephone message from brigade headquarters at Gettysburg (just off the map to the south)—­An enemy force estimated strength one regiment is in camp 6 miles north of Center Mills.  His patrols were seen yesterday by our advance cavalry near Guernsey and Center Mills.  It is reliably reported that this force will march by Center Mills and Guernsey on Biglersville to-morrow morning to destroy a large amount of rolling stock at that point.  Move at once toward Center Mills to stop and drive back this force.

Officers call is sounded.  The situation is explained to the officers and they are told to have their companies ready to move at 2.00 a.m.  The 1st battalion is designated as advance guard.

The advance guard is directed to move across the field to road fork 511 thence north by the main road.  The first platoon of “A” company is designated as advance party.  “B” company and the remainder of “A” company form the support.  As the advance party moves out Captain Smith commanding the support, says to Private Long, “Long, you and Williams move out as connecting files.  This is a dark night so be careful to keep connection both front and rear.”  Before Long is out of sight; he says, “Scott, you and Hunt move out as connecting files following Long.”  You are Scott.

Required: 

(a) What instructions do you give Hunt?

(b) What do you do up to the time you reach the main road at 511?

Situation II: 

After you have passed road fork in Table Rock about 100 yards you notice that Hunt who has been watching to the rear does not seem to be alert.  You look back and can see no sign of the connecting file in rear of you.  It is still dark.

Required: 

What do you do?

Second Problem:  An Advance Guard Point—­General Situation same as in
Problem I: 

Sergeant Hill and four men constitute the point.  The situation has been explained to Sergeant Hill by the advance party commander.

About daylight the point arrives at crossroads 600.  A sharp fire evidently from about a squad is received from the house on the rise 500 yards north along the road.  You are Sergeant Hill.

Required: 

What do you do?

Third Problem:  An Advance Guard Flank Patrol—­Situation I—­General
Situation same as Problem I: