The record of the Davis furnace has been so far entirely satisfactory. The Lancaster crematorium contains two of these furnaces. This crematory has no smokestack; that is, the chimney reaches but several inches above the roof of the building. On Nov. 23, 1885, Prof. T. R. Baker, Ph.D., of the Millersville State Normal School, collected 30 jars of gases from the escape-flue of the Lancaster crematorium, with a view of analyzing them, to ascertain the nature of the products of combustion of the human body during incineration. Many persons have contended that poisonous gases are given off, thereby polluting the air; and it was with a view of clearing up this phase of the subject that the experiment was undertaken. The apparatus used to collect the gases consisted of an iron gas-pipe, five feet being bent two feet from one end at right angles. The long end was passed down the escape-flue from the furnace. To the other end was attached a glass tube, which ran to a U-tube surrounded with ice, to condense vapors. The gas was collected in a jar. Fifteen jars were thus collected before the body was introduced into the retort, and 15 at various stages of the incineration. The body was that of a man who had died from dropsy. Below will be found Dr. Baker’s report. STATE NORMAL SCHOOL, MILLERSVILLE, Pa., Dec. 7, 1885. DR. M. L. DAVIS:— _Dear Sir_: I have completed the examination of the gaseous products recently obtained from the chimney of the Lancaster crematorium, and will now report the results of my investigation. The escaping products were tested at the crematorium for water and for gases readily soluble in water, and several bottles of these products were collected before the body was put in the retort, as well as during the cremation. Water, etc., were tested for by passing several gallons of the escaping products through the U condensation tubes, surrounded by ice, and then through distilled water. The estimated amount of water in the products escaping before the body was put in the retort was .0011 of a cubic inch to the gallon, while during the cremation it was .0044 of a cubic inch to a gallon. The water through which the gases were passed, both that used before the body was put in the retort and that used during the cremation, had a distinct acid reaction, quickly reddening blue litmus paper. I could not, however, detect any difference in the degree of acidity of the waters, and their reaction did not indicate that the gases which had passed through them were more acid than the gaseous products passing off from ordinary coal fires. The waters were found to contain traces of the mineral acids generally found in very small quantities in the products of the combustion of mineral coal. They gave no reaction for salts of ammonia, nor for sulphuretted hydrogen.