LONDON AND SUBURBS. 77 



long time upon it, this Marcasite effloresces to a mould, 

 vittras sonder til en mull, and that very gradually, 

 so that the surface of it first begins to effloresce, vittra 

 sonder, and afterwards the remainder. It has to lie 

 here 6, 7, 8, 10, or even 12 months sometimes, before it 

 has crumbled to mould. When the sun has worked 

 some time on it, it becomes quite white and mealy on 

 the outside, and if one sets the tongue on this meal it 

 tastes exactly like Vitriol. When the rain afterwards 

 falls on this stone, the mealy part and all that has 

 become resolved into salt, is washed away from it, and 

 carried down to the bottom of this dug place, grafda 

 platsen, when it runs through the canals that are there 

 to the house where the Vitriol is boiled, where it is col- 

 lected in a large Cistern. Outside the aforenamed dug 

 pit, grafde dam, where the stone is laid out, there 

 stand, let down here and there, bottomless tuns, bot- 

 tenlosa tunnor, in which the gutters or pipes which 

 lead the water to the Cistern can be seen down at the 

 bottom. One sees in them how the Vitriol-lye runs ; for 

 the gutter which comes from the dug pit, ends on one side 

 of the tun, tunnan, and on the opposite side commences 

 the pipe, pipan, which leads the water to the above- 

 named cistern. These tuns are set here for this reason, 

 that it can be seen in them whether any of the gutters 

 or pipes have become stopped up, and which pipe it \s, 

 so that the same may be set to rights. 



They are very careful here that some rain should fall 

 on this Marcasite, Svafvel-kesen, after the sun has 

 shone upon it for some days. For example, six days' 

 [T. I. p, 466] sunshine and the seventh rain were here a 

 beautiful thing ; for then the Marcasite would soonest 

 effloresce, vittra sonder, and yield the most vitriol-lye ; 

 but as such a succession of weather does not always 

 happen, the owner has erected at two places in the 



