Plate XX.— Floor of left Glttural Pouch 



I. Probe passed into posterior diverticulum to triangle of Virborg. 2. Anterior diverticulum. 3. Probe in 



eustachian tube. 4. Soft palate. 5. Styloid process of occipital bone. 6. Entrance of probe passed through 



occipito- styloid muscle. 7. Styloid cornu of hyoid bone. 



