12i Trans. Acad. Set. of St. Loui$. 



ABBREVIATIONS. 



Anl. Anlage of ethmoidal column. 



Ant. tr. pi. Anterior trabecular plate. 



C. Cell column between anlage and trabecula. 



C. F. Communicating branch from Ramus frontalis to the third main 



division of the Ophthalmic V. 

 Col. eth. Columua ethmoidalis. 

 Co. tr. Cornu trabeculae. 



C. tr. Crista trabeculae. 



D. nl. Ductus nasolacrlmalls. 



E. Bye-ball. 



Eth. br. Ethmoidal bridge. 

 Eth. pi. Ethmoidal plate. 



F. Ramus frontalis trlKemini. 

 Fen. eth. Fenestra ethmoidalis. 

 Fen. ol. Fenestra olfacloria. 



F. olf. Foramen olfactorium. 



I. N. Branch of olfactory nerve. 



Inc. med. Incisura medlalls. 



J. gl. Jacobson's gland. 



J. O. Jacobson's organ. 



L. Lamina crlbrosa. 



Max. Ramus maxillaris trigemlnl. 



M. D. Main division of nasal sac. 



N. L. P. Nasolacrimal pouch. 



N, S. Nasal sac. 



O. F. Olfactory nerve fibers. 



Olf. Olfactory bulb. 



Oph. Vi, J, 8- First, second and third main divisions of the Ophthalmic 

 V nerve in the orbit. 



P. Ramus palatinuH VII. 



Pr. BO. Processus anlorblLalis. 



Pr. eth. Processus ethmoidalis. 



Pr. lat. Processus lateralis (of the ethmoidal column). 



Pr. med. Processus medialis (of the trabecula). 



Pr. n. med. Processus nasalls medialis. 



Pr. uuc. Processus uncinatus (of the ethmoidal column). 



R. nl. Branch of the third main division of the Ophthalmic V nerve, fol- 

 lowing the nasolacrimal duct. 



Sub. 8. Subuasal space. 



Tr. Trabecula. 



Issued Dec. I, 1906. 



