In order to exercise perfect control over the movements of those individuals who were to be subjected to experimentation, and to avoid any other possible source of infection, a location was selected in an open and uncultivated field, about one mile from the town of Quemados, Cuba.  Here an experimental sanitary station was established under the complete control of the senior member of this board.  This station was named Camp Lazear, in honor of our late colleague, Dr. Jesse W. Lazear, Acting Assistant Surgeon U.S.A., who died of yellow fever, while courageously investigating the causation of this disease.  The site selected was well drained, freely exposed to sunlight and winds, and from every point of view satisfactory for the purposes intended.

The personnel of this camp consisted of two medical officers, Dr. Roger P. Ames, Acting Assistant Surgeon U.S.A., an immune, in immediate charge; Dr. R. P. Cooke, Acting Assistant Surgeon U.S.A., nonimmune; one acting hospital steward, an immune; nine privates of the hospital corps, one of whom was immune, and one immune ambulance driver.

For the quartering of this detachment, and of such nonimmune individuals as should be received for experimentation, hospital tents, properly floored, were provided.  These were placed at a distance of about twenty feet from each other, and numbered 1 to 7 respectively.

Camp Lazear was established November 20, 1900, and from this date was strictly quarantined, no one being permitted to leave or enter camp except the three immune members of the detachment and the members of the board.  Supplies were drawn chiefly from Columbia Barracks, and for this purpose a conveyance under the control of an immune acting hospital steward, and having an immune driver, was used.

A few Spanish immigrants recently arrived at the port of Havana were received at Camp Lazear, from time to time, while these observations were being carried out.  A nonimmune person, having once left the camp, was not permitted to return to it under any circumstances whatsoever.

The temperature and pulse of all nonimmune residents were carefully recorded three times a day.  Under these circumstances any infected individual entering the camp could be promptly detected and removed.  As a matter of fact, only two persons, not the subject of experimentation, developed any rise of temperature; one, a Spanish immigrant, with probable commencing pulmonary tuberculosis, who was discharged at the end of three days:  and the other, a Spanish immigrant, who developed a temperature of 102.6 deg.  F. on the afternoon of his fourth day in camp.  He was at once removed with his entire bedding and baggage and placed in the receiving ward at Columbia Barracks.  His fever, which was marked by daily intermissions for three days, subsided upon the administration of cathartics and enemata.  His attack was considered to be due to intestinal irritation.  He was not permitted, however, to return to the camp.