218- chf.ap and durable structures;. 



into the mould till the first layer is well beaten, which may he 

 ascertained by striking it with the rammer. The stroke should 

 leave hardly uny print on the place. They- must proceed ia 

 this manner, to ram in layer after layer, till the whole mould 

 When the ram- is full. When this is done, the mould may be taken to pieces, 

 ji'tetc,'the earth ^'^^ ^^^ "^^""^^ which it contained will remain firm and upright, 

 ie quite firm, about nine feet in length, and two feet and a half in height. 

 The mould may then be replaced for another length, includ- 

 ing one inch of that which has first been completed. The re- 

 gular manner of joining the different lengths may be seen in the 

 geometrical elevation, Fig, 14-. Pl.VI., where it will be observed 

 that no joints ai-e left in this work, as the different lengths are 

 united, and made to press one upon the other. In the second 

 length, and most of the following, the head of the mould is use- 

 less ; it is only made use of at the angles. 

 Partition walls. When the workmen have gone round the building, they must 

 begin upon the partition-walls, where the head of the mould 

 must be used to form the door-jambs. 

 Subsequent The first cburse being thus completed, we proceed to the 



are scTnnn ^^^ Second ; and in each successive course we must proceed in a 

 that no tiine is direction contrary to that of the preceding. It may easily be 

 jor them to be- conceived, that with this precaution the joints of the several 

 <ome in'lura- courses will be inclined in opposite directions, which will con- 

 ted. Three ., 11.^ ^1 i mi • 

 courses may be triDute very much to the firmness of the work. Ihere is no 



laisediuaday. j.(,j^son to fear overcharging the first course with the second, 

 though but just laid; for three courses may be laid, without 

 danger, in one day. Mark the grooves for receiving the joists 

 in the first course, at the distance of three feet from each other, 

 but not immediately over the former grooves, but over the 

 middle points between them. See Fig. 14. These grooves 

 must be cut for the joists, and the second course completed as 

 the former, except that it must proceed in a contrary direc- 

 tion, and the head of the mould and wall-gauge must be di- 

 minished, in order that the same inclination of the sides to 

 each other that was given to the first course may be preserved 

 in this second. 

 Cotuu'ction of It must, however, be remarked, that this second course is 

 wmf ttie side- ^^^ ^^ ^^ continued, without interruption, like the first, as it is 

 waHs. necessary that the partition-wall, should join or bind into the 



exterior wall, or rather that all walls in the building, whether 



outside 



