When wark had ceased - fiel', Lads knitted, lassies trig an' clean, Did birr the spinnin' wheel;

His remarks convicted him of a lack of sensitivity.

Two technological advances, light-emitting diodes (LEDs) and microprocessors, plus the ingenious idea of analyzing the change in light absorption produced by arterial pulsations, resulted in the development of a new generation of oximeters: the pulse oximeter …. Now, clinicians are again thinking of oxygenation as a function of the degree of saturation and oxygen content, as the pulse oximeter becomes the preferred monitoring device.

If the robin is the prototype of bird, do particular examples of robin constitute that prototype for different people? I think not. Rather, prototypes are themselves categories. Thus, to say that a robin is a prototypic bird is to propose that a class of similar creatures called robin is a prototype of bird.