'Insert a blacksmith's bellows (φῦσαν χαλκευτικήν) and inflate the intestine in order that you may dilate the contraction both of the colon and the intestine. Then remove it and give an enema' (ii. 305). _Nasal Syringe._ Greek, ῥινεγχύτης; Latin, _rhinenchytes_. A special nasal syringe with a double tube is mentioned by Aretaeus (ed. Adams, vol. ii. 459). The medicament is made into liquid form and is injected by means of a nasal pipe. The instrument consists of two pipes united together by one outlet so that we can inject by both at one time, for to inject each nostril separately is a thing which could not be borne. Galen also mentions a nasal syringe (ῥινεγχύτης), though he does not describe it (xi. 125). Scribonius Largus also mentions it: Per nares ergo purgatur caput his rebus infusis per cornu quod rhinenchytes vocatur (_Compositiones_, vii). _Aspiration Syringe and Sinus Irrigator._ Greek, πυουλκός. Galen (xi. 125) says: 'In cases of sinus he uses a tube of bronze or horn with a straight bore, or otherwise the instrument called the pus extractor (πυουλκόν), which has a wide bore. But if you inject rosaceum into the former (i. e. tube of bronze, &c.) it will not pass through the syringe (πυουλκῷ), so that in that case a pipe of wide bore is to be fixed to a sow's bladder.' This passage shows that the pyulcus differed in principle from the syringe formed by fixing a bladder on a tube. Hero (_De Spiritalibus_, c. 57) shows that it was a syringe formed of a cylinder of metal with a well-fitting plunger. Hero says: 'And the instrument called pyulcus works on the same principle. 'For a long tube AB is made, to which let there be fitted another CD, and let C, the end of it, be closed by a plate. At D let it have a handle EF, and let the mouth of the tube AB at A be blocked by a plate furnished with a slender syringe GH, perforated. 'When therefore we wish to draw out pus, applying the extreme mouth H of the little syringe to the place in which the pus is, by the handle we draw the tube CD outward, and the space which is in the tube being emptied something else is of necessity drawn in, and since there is no other space than the mouth of the tube the liquid at and near it must of necessity be drawn into it. 'Again when we wish to inject some liquid we put it into the tube AB and taking hold of EF and pressing in the tube CD we press out as much as we think necessary.'