These adjustments are practical methods of overcoming gravity handicaps in the distribution of the fluid, and of accelerating the amount of drainage obtainable by keeping the level of the drainage tube below the blood level in the body, thus accomplishing a universal distribution of fluid, and securing a greater quantity of undiluted blood from the vein. It is very important to remember when you are through injecting the body that you are to place the body in the exact position on the cooling board which you want it to have in the casket. After a little time the body will become more or less rigid due to the action of the preservative fluid used, and will set in the position you have placed it which condition will be hard to change later. =Selection of an Artery.=—Great care should be taken in the selection of an artery. Never make a practice of using the same artery on all cases. Acquaint yourself with the location of them all, and on different occasions, as different conditions arise, use the artery most likely to give the best results for the condition in hand. Convenience usually governs the operator as to the artery he is to use. If blood is to be removed it is best to raise one of the larger blood vessels, such as the carotid artery and the internal jugular vein, or the femoral artery and femoral vein, or the axillary artery and axillary vein. If it is desired to draw the maximum amount of blood, the femoral artery and vein should be selected, as they are more dependent, and control more of the blood, when the body is placed on an incline. A drainage tube sufficiently long to reach above Poupart's ligament as far as the common iliac is all that is necessary as there are no valves intervening between the bifurcation of the common iliac and the right auricle. However if you can, extend the tube up through the ascending vena cava and eustachian valve into the right auricle. This will give you a chance to draw blood from the right auricle and is a much better procedure than tapping the right auricle with the trocar. If the body is already dressed and the hands or feet need to be re-injected, the radial or posterior tibial likely will be most convenient as their use will not necessitate the removal or cutting of the clothing. Oftimes there is but a single window to admit light and the operator should be so skilled as to be able to raise the arteries either on the right or left side without having to turn the cooling board. In emaciated subjects the linear and anatomical guides are always plain but in fleshy subjects this is not always the case. Look over the subject and see which artery will be the most convenient to raise. Usually in fleshy subjects the femoral is hard to raise as there is a great amount of fat in Scarpa's triangle making the artery lie very deep, but in these subjects the guide for the brachial is quite plain, a distinct groove being seen between the biceps and triceps muscles.