8 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Mouse 246, 1-hour Stage. 



Int. 1 Exfoliation slight. 



3 Exfoliation moderate. 



5 Exfoliation none. 



7 Exfoliation slight. 



9 Exfoliation slight. 



11 Exfoliation modern te. 



13 Exfoliation severe. 



15 Exfoliation severe. 



17 Exfoliation slight. 



19 Exfoliation none. 



21 Exfoliation severe. 



23 Exfoliation slight, 



25 Exfoliation none. 



Mouse 251, 1§-hour Stage. 



Int. 1 Exfoliation none. 



3 ". Exfoliation none. 



7 Exfoliation none. 



9 Exfoliation none. 



Mouse 248, 2-hour Stage. 



Int. 3 Exfoliation slight. 



8 Exfoliation none. 



9 Exfoliation none. 



15 Exfoliation slight, 



21 Exfoliation slight, 



26 Exfoliation none. 



27 Exfoliation none. 



28 Exfoliation none. 



30 Exfoliation very slight. 



32 Exfoliation very slight, 



Mouse 249, 3-hour Stage. 



Int. 2 Exfoliation moderate. 



6 Exfoliation none. 



8 Exfoliation none. 



10 Exfoliation none. 



12 Exfoliation none. 



17 Exf oliat ion moderate. 



18 Exfoliation slight. 



19 Exfoliation slight, 



20 Exf oliat ion very slight . 



22 Exf oliat ion none. 



24 Exfoliation none. 



29 Exfoliation slight, 



30 Exfoliation none. 



31 Exfoliation none. 



Mouse 261, 4-hour Stage. 



Int. — 1 Exf oliat ion none. 



— 3 Exfoliation slight, 



— 5 Exfoliation slight. 



Mouse 247, 4-hour Stage. 



Int. 12 Exfoliation none. 



14 Exfoliation none. 



