Volume 1

A treatise on the digestion of food / [George Fordyce].

  • Fordyce, George, 1736-1802
Date:
1791
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the digestion of food / [George Fordyce]. Source: Wellcome Collection.

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    [- 24° ] rather mufcles, and lined with a cartilagi. nous or horny membrane. The birds pick up ftones, which by the motion in this cavity grind the food, and perform the of- fice which teeth do in other animals. Spa- lanzani, and others, have denied that they were of this ufe, and have affirmed that the ftones were picked up by mere acci- dent, the animals miftaking them for feeds. But I have examined this particularly in experiments I made in hatching eggs with artifical heat; I have hatched vatt num- bers, and frequently have given the chickens {mall feeds whole, taking care that they fhould have no ftones. In this cafe the feed was hardly digefted, and many of the chickens died. With the fame treatment in every refpect, others who had their feeds ground, or have been allowed to pick up {tones, have none of them been loft, With tolerable care, when common chickens are once hatched by artificial heat, they are eafily brought up without a hen, as by inftinct they will keep in that part of the furnace re aay | - where