i8S EXPERIMENTS 



the milty liquor, which had been pumped, and 

 was confined in the fpongy fubftance, runs out 

 through the barrel. 



As this phaenomenon is extremely fmgular, 

 and inconteHibly proves that the moving bodies 

 in the milt of the calmar are not real animals, 

 but fimple machines, a fpecies of pumps, 1 fhall 

 here tranfcribe Mr Needham's own account of 

 the matter : 



* When the fmall machines *,' fays he, * have 

 come to their full maturity, feveral of them adt 

 as foon as they are expofed to the air. Moft 

 of them, however, may be commodioufly 

 viewed by the microfcope before their adion 

 commences ; and, even before they ad:, it is 

 neceflary to moiften with a drop of water the 

 fuperior extremity of the external cafe, which 

 then begins to expand, while the two llender 

 ligaments that iflue out of the cafe are twifted 

 and contorted in different ways. At the fame 

 time, the fcrevvr rifes flowly, and the fpirals at 

 Its fuperior end approach each other, and a<5l 

 againft the top of the cafe, thofe which are 

 lower feeming to be continually followed by 

 others that iflue from the pifton ; I fay, that 

 ihQyfeem to follow ; becaufe I believe it to be 

 only a deception produced by the tnotion of 

 ' the fcrew. The pirton and barrel likewife 

 * move in the fame diredion j and the inferior 



' part, 



* Needham's New Difcov cries made with the MicrofcopCs 

 ch. 6. p. ^7f. 



