§ 141. The extent of burial ground requisite for any district will be determined by the rate of decomposition.
§ 142. At Franckfort and Munich, and in the other new cemeteries on the continent, where qualified persons have paid attention to the subject, the general rule is not to allow more than one body in a grave. The grounds for this rule are,—that, when only one body is deposited in a grave, the decomposition proceeds regularly,—the emanations are more diluted and less noxious than when the mass of remains is greater; and also that the inconvenience of opening the graves, of allowing escapes of miasma, and the indecency of disturbing the remains for new interments, is thereby avoided; and in the case of exhumations, the confusion and danger of mistaking the particular body is prevented.
§ 143. The progress of the decay of the body is various, according to the nature of the soil and the surrounding agencies. Clayey soils are antiseptic; they retain the gases, as explained by Mr. Leigh; they exclude the external atmosphere, and are also liable to the inconvenience of becoming deeply fissured in hot weather and then allowing the escape of the emanations which have been retained in a highly concentrated state. Loamy, ferruginous, and aluminous soils, moor earth, and bog, are unfavourable to decomposition; sandy, marly, and calcareous soils are favourable to it. Water, at a low temperature, has the tendency, as already explained, to promote only a languid decomposition, which sometimes produces adipocire in bodies: a high and dry temperature tends to produce the consistency and permanency of mummies. A temperature of from 65 degrees Fahrenheit and upwards, and a moist atmosphere, is the most favourable to decomposition. The remains of the young decompose more rapidly than those of the old, females than males, the fat than the lean. The remains of children decompose very rapidly. On opening the graves of children at a period of six or seven years, the bodies have been found decomposed, not even the bones remaining, whilst the bodies of the adults were but little affected. The process of decomposition is also affected by the disease by which the death was occasioned. The process is delayed by the make of some sorts of coffins. The extreme variations of the process under such circumstances as those above recited is from a few months to 30 years or half a century. Bones often last for centuries.
§ 144. The regulation of the depth of the graves has been found to be a subject requiring great attention, to avoid occasioning too rapid an evolution of miasma from the remains, and at the same time to avoid its retention and corruption, to avoid the pollution of distant springs, and also to avoid rendering increased space for burial requisite by the delay of decomposition usually produced by deep burial, for the ground usually becomes hard in proportion to the depth, and delays the decomposition. Attention to these circumstances by qualified persons in Germany has led to different regulations of the depth of graves at different ages. At Stuttgart the different depths are as follows: for bodies of persons—
| ft. | in. | |
|---|---|---|
| Under 8 years | 3 | 9 |
| 8 to 10 years | 4 | 7 |
| 10 to 14 years | 5 | 7 |
| Adults | 6 | 7 |
At the Glasshutte, in the Erzgebirge, the depths are as follows:
| ft. | in. | |
|---|---|---|
| Under 8 years | 3 | 8 |
| 8 to 14 years | 4 | 7 |
| Adults | 5 | 0 |
At Franckfort the average depth prescribed for graves is 5 ft. 7 in.; at Munich 6 ft. 7 in.; in France 4 ft. 10 in. to 6 ft.; in Austria 6 ft. 2 in., if lime be used.
§ 145. Space between graves is also a matter requiring attention to avoid the uncovering of the coffin in one grave in opening another, and to avoid the accidents arising from the falling in of the sides of the graves: this space must vary according to the consistency of the ground and the depth of the graves. At Munich and Stuttgart the space prescribed, is in round numbers, rather more than 32 square feet to each adult. To avoid treading on the graves, and to allow the access of friends, spaces must be allowed also for walks.
These circumstances considered, the space requisite for the interments in a town may be determined by the multiplication of the average square superficies of a grave, by the average yearly mortality, and the period of years which the grave is to remain closed. “As an example,” says Dr. Reicke, “of the mode of calculating the necessary space for the burial ground of a populous district, I will take a town of 35,000 inhabitants. Accordingly of this number it may be reckoned there will yearly die 1000. Of the number 500 will be adults, 50 children, from 7 to 14, and 450 children from 0 to 7 years. For the adults, allowing more than the most economical space, I calculate graves of 48 square feet Wirtemburg (i. e. 54·72 square feet English); for the children between 7 and 14 years, 24 square feet (27·36 English feet); and for those under 7, 20 square feet (22·80 English). For the adults I take a period of 10 years, for the youth 8 years, for the infants 7 years, as the time during which periods the grave must not be opened.” According to this calculation the space required for the interment of the several classes would be—