After Holmes, the man who cared for the dead began to feel that his was a professional work worthy of the name. The average undertaker, at the time just after the civil war, was a cabinet maker, whose chief function was to make the coffin or casket for the body, take the casket to the house and place the body in it. Then the larger undertakers in the larger cities found that they were compelled to preserve some of the bodies in some way so that distant relatives could reach the scene before the funeral. This probably was the result of betterments in transportation facilities which led people to travel more. Along with this, travelers frequently died away from home and had to be shipped. The baggage men rightfully objected to remaining in the same enclosed space with an unembalmed body and, altogether, a condition arose in which it was necessary to have some way to preserve the body. As evolution is always a slow process, we cannot as we would like to do, chronicle the introduction of chemical embalming at this time, for refrigeration was the first thing thought of. The ice box, was the means by which bodies were kept for several days; the body being covered and left that way until a few hours before the funeral. This became so unsatisfactory specially when the sensibilities of the undertaker became sharpened, that they immediately looked about for a more convenient way to handle the situation. Spurred on by this demand, several concerns came into the market with preservative solutions with an arsenical base, and which were used principally for external application and cavity injection. All kinds of instruments were used with which to introduce the fluid into the body cavities until Captain George Billow, of Akron, Ohio, a civil war veteran, and at present a member of the Ohio State Board of Embalming examiners, contrived the pen point trocar, which is still in use among the profession. With the introduction of the trocar, and the campaigns of the fluid manufacturers, trade periodicals and traveling men, cavity embalming became the means of preservation, until its limitations were learned. Joseph Henry Clarke, who first traveled for fluid houses, and who was interested in the anatomy of the human body, since his connection with the U. S. hospital service in the Civil war, determined to introduce the arterial injection as the means of placing the fluid through the body. In collaboration with Dr. C. M. Lukens, the occupant of the chair of Anatomy at the Pulte Medical College of Cincinnati, Prof. J. H. Clarke opened a school of embalming naming it the Cincinnati School of Embalming. This took place during the year 1882. Prof. Auguste Renouard of Denver, Colorado, came into the field about the same time. Thus we have the beginning of the greatest revolution of all times in the care of the dead human bodies.