Mi/cellanea Curioja, 133 



%. As PerfpeEiive-GlaJJes and Telefcopes help 

 the Eye to fee Objects at a very great diftance, 

 which otherwife would not be diicernable ; in like 

 manner may a fort of Otaaouftickj be fo contriv'd, 

 as that they {hall receive in Sounds m^t at a very 

 great diftance alio, but with fb much advantage, 

 that the Ear {hall be able to hear them, which o- 

 therwife would have been inaudible. 



And thefe Otacoufiickj in fome refpecta would 

 be of greater ufe than PerfpeBivcs. For whereas 

 at Land PerfpeHives are many times render'd ai- 

 med ufelefs, by the interpofition of Woods and 

 Mountains, which hinder the Sight from reach- 

 ing very far : Our Otacouflickj would, notwith- 

 {landing thefe Obftacles, take in a Sound made 

 fbme Leagues off. Which might be of notable 

 ufe in the time of War, for difcovering the Enemy 

 at a good diftnnce, when he marches or lyes in- 

 camp'd behind a Mountain or Wood, or any 

 fuch place of {helter. 



Yea, even at Sea alfo, where PerfpeBives are 

 of moft ufe, by realbn of the plainefs of the 

 Surface of the Water • yet fometimes there O- 

 tacouftickj may be of more benefit, when in 

 dark hazy Weather the Air is too thick, or in 

 Stormy Tempeftuous Weather the Waves 

 arife too high for the Perf\ etlive to be made 

 ufe of. 



But, whether at Sea or Land, Perfpctlhcs be- 

 come altogether infignificant in the Night-time 

 (unlefs it be for viewing the Stars) which is the 

 chief time for ufmg Otacoufiickj ; as it is generally, 

 for Soldiers to take their March, when they woulol 

 (urprife their Enemies. 



And therefore this fort of Otacouftlcks have 

 then their chief ufe, when Perfpell ives are of no 



K 3 ufe 



