Natvrall and artificiall conclvsions. Compiled first in Latine, by the worthiest and best authors, both of the famous University of Padua in Italy, and divers other places. Englished since, and set forth by Thomas Hill, Londoner, whose own experiments in this kinde, were held most excellent. And now againe published, with a new addition of rarities, for the practise of sundry artificers; as also to recreate wits withall at vacant times.

XII. How to make quarters of wood to hang so fast together, that they cannot be shaken asunder without breaking: or to lay Knives or Tobacco pipes triangular.

[illustration]

TO make quarters ••old and hang toge∣gether thus without tying, must bee done on this wise. First, lay one of the quarters downe, as these two letters A. and B. doe instruct, on the which lay the other quarter, even as these two letters C. and D. doe here represent, and one that C. and D. lay the third quarter, as the letters E. and F. doe here expresse, and in such sort, that E. and F. must lye under A. B. And being then thrust hard toge∣ther

they cannot fall away without brea∣king, in that A. and B. is stayed and held of E. and F. and E. and F. of C. and D. and C. and D. holden of A. and B. so that none of them can fall asunder, the one from the other. Also that place where B. D. E. is holden or stayed together, and doth the like hold together, as by tryall of the same shall more manifestly appeare. Also, the more and harder they be thrust rogether, the longer they continue so han∣ging together. And a like ••riall unto this may be assayed and proved, either with three stickes made flat for the nonce, or with three knives being alike, or three Tobacco-pipes, if they be orderly used.