egg syringe (egsir"inj)

A small, light metal syringe for forcing a stream of water into an egg to empty it, or to wash the inside of the shell, for oölogical purposes. The best are made with a ring in the end of the piston large enough to insert the thumb, so that they can be worked with one hand while the other holds the egg. The nozle is fine, and may be variously curved. egg-tester (eg'tes tėr), n. A device for examining eggs by transmitted light to test their age and condition or the advancement of an embry onic chick. It may be in the form of a dark lantern with an opening through which the egg is viewed, or of a box with perforated lid carrying the eggs, and a reflector below for throwing the light through them, or in the much simpler and more practical form of a conical tube, the egg being held toward the light against the orifice at the larger end and observed by means of an eye-hole in the smaller end. Also egg - lighter.