i6o 



u\[jituraU Hiflory 



,60 



Experiments 

 Con for r, 

 touching 



fpecics viftbh 

 76I 



762 



Experiments 

 in Con fort, 

 touching the 

 Impulfion, and 

 Percufiou. 

 763 



Or from the Conftitution of the Womb. For the former, thole that are longer 

 in comming to their Maturity or Growth, are longer in the Womb^As is chief- 

 ly fcen in Men; And fo Elephants which are long in the womb,zie long time 

 in comming to their full Growth. But in moft other Kinds, the Conftitu- 

 tion of the Womb, (that is, the liifdnejt > or tortnifi thereof,)is concurrent 

 with the former Caufe. For the Colt hath about four years of Growth , And 

 fotheFawn; And fo the Calf. But whelps , which come to their Growth 

 (commonly) within three Quart ers of a year , are but nine Weeks in the 

 Wombe. As for Birds , as there is lefs Diverfity, amongft them in the 

 time of their Bringing forth \ So there is lefs Diverfity in the time of 

 their Growth Moil of them comming to their Growth within a Twelve- 

 Moneth. 



Some Creatures bring forth many Young Ones at a Burthen ; As Bitches, 

 Hares, Conneys, tic. Some (ordinarily) but One 5 AsWomen, LioneJJes, &c. 

 This may be caufed , either by the Quantity of Sperme required to the Pro- 

 ducing One of that Kinde ; which it lefs be required , may admit greater 

 Number; If more, fewer: Or by the Partitions and Cels oi the wombe^ 

 which may fever the Sperme. 



'J'Here is no doubt, but Light by Refratlim will (hew greater , as well as 

 Things coloured. Y or like as a Shilling, m the Bottom o{ the Water , will 

 fhew greater So will a Candle in a La/dhorn , in the Bottom oi the Water, I 

 have heard of a Practice,that Cjlo-wormes in Glafjes were put in the Water -fro 

 make the Fifty come. But I am not yet informed,whether when a Diver Di- 

 veth,having his Eyes open, and fwimmeth upon his Back ; whether (I fay) 

 he feeth Things in the ^zVf,greater or lefs. For it is manifeft,that when the 

 Eye ftandeth in the FinerMedinm.and the ObjeU is in the GroJJer, things (hew 

 greater - } But contrariwifc, when the Eye is placed in the Grofjer Medium, 

 and the ObjeB in the finer, how it worketh I know not. 



It would be well bouked out 3 whethcr great -Refractions may not be made 

 upon Reflections , as well as upon ( DireB Beames. For Example , We fee, 

 that take an Empty Bafon , put an Angel of Gold , or what you will, into it ; 

 Then go fo farre from the Bafon,ii\\ you cannot lee the Angel, becaufe it is 

 not in a Right Line ; Then fill the Bafon with water , and you fhall fee it out 

 of his Place,bccaufe of the RefleBion.To proceed therefore , put a Lotking- 

 GUijt into a Bafon of Water j 1 fuppofe you fhall not fee the Image in a right 

 Line,ov at equal Angles,hut afide. I know not whether this Experiment may 

 not be extended fo,as you might fee the lmage,and not the Glajs", Which for 

 Beauty and Strangenefl ; were a fine proof : For then you fhall fee the Image 

 like a Spirit in the Aire. As for Example , If there be a Ctftern or Pool of 

 Water,you fhall place over againftit a picture of the Devill , or what you 

 will fo as you do not fee the water. Then put a LcoHng-GlaJ? in the Water: 

 Now if you can fee the Devils Picture afide , not feeing the water , it will 

 look like a Devil indecd.They have an old Tale in Cxfcrd,That Friar Bacon 

 walked between two Steeples : Which was thought to be done by Glafjes, 

 when he walked upon the Ground. 



^Weighty Body put into Motion, is more eafily impelled, than at firft when 

 it Refteth. The Caufe is, partly becaufe Motion doth difcutfe the Tor- 

 pour of Solid Bodies Which befide their Motion of Gravity, have in them a 

 Natural Appetite, not to move at all; And parrly,becaufc a Body that refteth, 

 doth get, by the Refiflance ot the Body ujon which it refteth , aftrbnger 



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