CENTURY X. 133 



with heath or the like ; or else timber-shades, as in 

 forests and the like. It is noted also, that groves * 

 of bays do forbid pestilent airs ; which was account 

 ed a great cause of the wholesome air of Antiochia. 

 There be also some soils that put forth odorate herbs 

 of themselves ; as wild thyme, wild marjoram, penny 

 royal, camomile ; and in which the briar-roses smell 

 almost like musk-roses ; which no doubt are signs 

 that do discover an excellent air. 



937. It were good for men to think of having 

 healthful air in their houses; which will never be if 

 the rooms be low-roofed, or full of windows and doors ; 

 for the one maketh the air close, and not fresh ; and 

 the other maketh it exceeding unequal ; which is a 

 great enemy to health. The windows also should 

 not be high up to the roof, (which is in use for beauty 

 and magnificence,) but low. Also stone-walls are 

 not wholesome ; but timber is more wholesome ; and 

 especially brick. Nay, it hath been used by some 

 with great success to make their walls thick, and to 

 put a lay of chalk between the bricks, to take away 

 all dampishness. 



Experiment solitary touching the emissions of spiritual 

 species which affect the senses. 



938. These emissions (as we said before) are han 

 dled, and ought to be handled, by themselves under 

 their proper titles ; that is, visibles and audibles, each 

 apart: in this place it shall suffice to give some general 

 observations common to both. First, they seem to be 

 incorporeal. Secondly, they work swiftly. Thirdly, 

 they work at large distances. Fourthly, in curious 

 varieties. Fifthly, they are not effective of any thing, 



