The following table shows the changes in the Regular Dental Corps from June 30, 1917, to June 30, 1918:

The Dental Reserve Corps consists of officers commissioned in the Dental Reserve established by the national defense act of June 3,

1906.

The following table shows the strength of the Dental Reserve Corps, by months and grades, from June 30, 1917, to June 30, 1918:

TABLE NO. 169.-Strength of Dental Reserve Corps, by months and grades, June 30, 1917, to June 30, 1918.

The Dental Corps, National Guard, composed of dental surgeons commissioned for duty in the various State organizations mobilized under Federal control.

The following table shows the strength of the Dental Corps, National Guard, by months and by grades, from January 31, 1918, to June 30, 1918:

TABLE NO. 170.-Strength of Dental Corps, National Guard, by months. June 30 1917, to June 30. 1918.

The following changes have occurred in the dental corps, National Guard, from June 30, 1917, to June 30, 1918:

The Veterinary Corps of the Medical Department was established by act of Congress on June 3, 1916.

The following table shows the commissioned personnel of the corps. by months and by grades, from June 30, 1917, to June 30, 1918:

TABLE NO. 172.-Commissioned personnel of the Veterinary Corps, by months. June 30, 1917, to June 30, 1918.

9. SANITARY CORPS.

The Sanitary Corps was established under the authority of section of the act "To authorize the President to increase temporarily the ilitary Establishment of the United States," approved May 18, 917, as per Paragraph III, General Order No. 80, War Department, une 30, 1917, as amended by Paragraph III, General Order 113, War Department, August 22, 1917.

The following table shows the strength of the Sanitary Corps, by months and by grades, from June 30, 1917, to June 30, 1918:

able No. 173.-Strength of Sanitary Corps, by months and by grades. June 30, 1917, to June 30, 1918.

The following table shows the changes in the Sanitary Corps from une 30, 1917, to June 30, 1918:

TABLE NO. 174.-Changes, Sanitary Corps.

The following table shows the number of contracts made and conacts annulled from June 30, 1917, to June 30, 1918, and the conact surgeons on duty on June 30, 1918:

11. UNITED STATES AMBULANCE SERVICE.

The United States Ambulance Service was established under the authority of section 2 of the act of Congress authorizing the Presi dent to increase temporarily the Military Establishment of the United States, approved May 18, 1917.

The following personnel was authorized:

Commissioned:

Colonels...

Lieutenant colonels.

Majors.....

Captains....

First lieutenants.

Total......

Enlisted, 160 ambulance sections, each consisting of:

Sergeants, first class..

160

203

Sergeants..

Corporals..

Mechanics..

Under the provisions of this law and under authority of G. O. 75, W. D., June 23, 1917, the following appointments have been made:

The following table shows the total commissioned personnel of the Medical Department for all corps, July 1, 1918.

TABLE NO. 176.-Officers, by grades, holding commissions in Medical Department on

July 1, 1918.

13. ARMY NURSE CORPS.

The following table shows the strength of the Army Nurse Corps, by months, and the strength of the reserve, by months, from June 30, 1917, to June 30, 1918:

Table No. 177.—Strength of the Army Nurse Corps, by months, June 30, 1917, to June 30, 1918.

NOTE. This does not include nurses on final leave or under orders to proceed home for relief or discharge.

14. ARMY SCHOOL OF NURSING.

Upon the recommendation of the Surgeon General of the Army, presented by a formal memorandum, the establishment of the Army School of Nursing was approved by the Secretary of War on May 25,

1918.

TABLE NO. 178.—Enlisted personnel, Medical Department. by months, June 30, 1917, to June 30, 1918.