NEW ATLANTIS. 405 



them are grown into use throughout the kingdom ; but 

 yet if they did flow from our invention, we have of 

 them also for patterns and principals. 1 



&quot; We have also furnaces of great diversities, and 

 that keep great diversity of heats ; fierce and quick ; 

 strong and constant ; soft and mild ; blown, quiet ; 

 dry, moist ; and the like. But above all, we have 

 heats in imitation of the sun s and heavenly bodies 

 heats, that pass divers inequalities and (as it were) 

 orbs, progresses, and returns, whereby we produce 

 admirable effects. Besides, we have heats 2 of dungs, 

 and of bellies and maws of living creatures, and of 

 their bloods and bodies ; and of hays and herbs laid 

 up moist ; of lime unquenched ; and such like. In 

 struments also which generate heat only by motion. 3 

 And farther, places for strong insolations ; and again, 

 places under the earth, which by nature or art yield 

 heat. These divers heats we use, as the nature of the 

 operation which we intend requireth. 



&quot; We have also perspective-houses, where we make 

 demonstrations of all lights and radiations ; and of al] 

 colours ; and out of things uncoloured and transparent, ^/^ 

 we can represent unto you all several colours ; not in *4f\x 

 rain-bows, 4 as it is in gems and prisms, but of them 

 selves single. 5 We represent also _aU multiplications 

 of light, which we carry to great distance, and make 

 so sharp as to discern small points and lines : also all 



* A ** - Li 



colorations of light: all delusions and deceits of the 



& (jf t- 



1 eorum quandoqu^ exemplaria, tanquam primigenia, et optime elaborata, 

 in Domo nostra. retinemus. 



2 imitationes caloris. 



8 Bacon seems to refer to the result of his investigation into the form 

 of heat, namely that heat is a kind of motion. R. L. E. 

 * nan in forma iridum gliscentes. 5 se dper se simpttces el constarties. 



