(2) _Army Ordnance Department._--The men of this section are skilled in the manipulation of ammunition, and in the tabulation and distribution of a hundred and one articles of equipment. It is a striking object lesson to make a tour of inspection of this important Department of the Army. It would be interesting to know how many hundreds of thousands of miles of barbed wire have passed through the hands of the A.O. during the war. Everything from a screw to a howitzer comes within their attention. As to the supply of guns and ammunition I am, of course, forbidden to say anything, excepting to share with my fellow-countrymen the greatest satisfaction that the grave difficulty noticeable earlier in the war has to so large an extent been overcome. (3) _Army Medical Stores._--Here again we have another striking object lesson in the wonders of detail. Everything required by Hospitals, Field Ambulances, Casualty Clearing Stations is herein stored and ready to be dispatched in response to the indents which are daily pouring in; the requirements of the R.A.M.C., from a surgical bandage to an operating table--to say nothing of drugs--must be ready for use. This involves the most careful attention on the part of the staff, which is, of course, composed of picked men. (4) _Railway Engineers._--In each Base will be found one or more companies of Sappers, who are responsible for the maintenance of telegraphic and telephonic communications, within the area of the Base; and also the construction and upkeep of military railway lines and buildings. (5) _Sanitary Department._--In Bases where permanent Garrisons are stationed (in some instances amounting to many thousands) much care must be exercised with regard to the ordinary hygienic conditions of life; and under highly qualified officers the most careful supervision is exercised in this respect. (6) _Army Post Office._--The correspondence of the Expeditionary Force is enormous, and involves a large staff in keeping 'Tommy' well posted with news from home. The efficiency of this important adjunct to our Army is as highly valued as it is admirably carried out.