17. Existe-t-il un droit à la migration ? La cigogne et la maison

On the Relationship between the Formation of Bile and Glycogen in the Liver of Rabbit1

“…By comparing the findings from rabbits, killed at different times of the day and at different intervals after feeding, it will be found that the bile-and glycogen formation respectively persues a periodical course, the two processes alternating with one an0ther.l In the morning (at 9) all cells contain as a rule plenty of glycogen but an exceedingly sparing quantity of secretion granules. Gradually, however, such granules begin to appear, at first usually in peripheral cells of the lobules and later in more centrally situated cells until some time in the day (2 to 3) all cells are found to contain an abundancy of secretion granules but only a sparing amount of glycogen.…”