The Effect of Resecting the So-Called “Chalaziferous Region” of the Hen’s Oviduct on the Formation of Subsequent Eggs

INTRODUCTION THE absence of chalazæ in early oviducal eggs has often been observed. Hansen (1933) found that the chalazae became visible at about the time the inner thin white was formed, that is. while the egg was in the uterus. He believed that the chalazæ were formed from the viscous, thick white by a rotation of the egg contents while the viscous white is fixed at the two poles. He attributed these movements to a flow of salt solution into the egg which also took part in the formation of the inner thin white. Richardson (1935), on the other hand, held the view that the chalazæ were secreted by a specific part of the oviduct. He described mucous cells in a portion of the oviduct located between the funnel (the latter being approximately 3.5 cm. long) and the cephalic end of the magnum (albumen secreting region). These cells make up . . .