§ 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.