181 



li-t u{ the l'li:n)iT(i,i;-aiiis of I'rimklin ('diinly. It ilurs not apiuMr in tlir catalogue 

 111' Indiana plants imlil islu'd in (•(lunoft'ion witii tlu- lidtanical (Jazcttc a fow years 

 ago, in 1S82, I liriievc. But accnnling tn Dr. dillins it occurs in I)carl)orn 

 Conntv. Dr. Pliinucy placo it among tlic lori'St trees ot' Delaware Ciuinty. It 

 has lieen reiiorted, I know not l>y winuu. I'roni .lefl'erson County. Hence Knsli 

 County seems to l>e in the region iidiabited iiv the Sweet lluekeye. 



The eomjiarative sizes ot" ^T}>ciil.iii< glabra and ^l^xnihia Jhira, as given liy the 

 nuihors. is good evidenci' that the tree in iiucslion was .I'J^rnhix jhini, and not the 

 I'omnion buckeye, ^K-'ckIh-'' (/kthru. According to (iray, ijlubra is a large tree, and 

 //orrt a large tree or shrub. According to Wood, (jlu}ir(t is a small, ill-scented tree, 

 ami ihud a large tree, ."Ul to 70 t\'et high, common in the southern and western 

 states. Then he adds by way of parenthesis: In Columbia County, Georgia, 

 only 4 to (i feet high. This seems to explain the shrub of ( iray, and indicates that 

 it is not only an extreme, but uarinwly local variety. In ISargcnt's I'^orest Trees 

 <if North America, glabm is a small and medium-si/ed tree, and //(i*(( a tree some- 

 times 60 feet in height, with a trunk 2 to 3 feet in diameter, .\ecording to Apgar, 

 glabm is a small to a large tree, sometimes only a shrub (i to 7 feet high, and is 

 found from Virginia to Indiana and southward. 



If this big buckeye was ^Ksridu^ jhiva, and the evidence shows that it was, we 

 have an examide of a gigantic individual growing near the limits of the range 

 iif the speeii'S. 



Emiiryo Sac or .Jefi-ersonia Diphvlla. By Franic M. Andrews. 



Some Notes on the Amikha. By A. .T. IWcney. 



Students and teachers in biology usually have considerable diflicully in find- 

 ing an abundant supply of this interesting little animal. The directions gencn'ally 

 given in our text-l)ooks will enable one to find plenty in the course of time, but 

 the teacher does not have very niucli time to devote to this ]>art of the work, and 

 in many cases the animal must be omitted because it can not be found when it is 

 needed. 



I iiope that no mendier of this Acadc-my has ever had any difliculty in this 

 line, but 1 fear my wish can not be realized. It may be that tlu' method of find- 

 ing them here presented is not new to this Academy, but I have not as yet met 

 with it after examining almost scores of texts and talking witii many of the lead- 

 ing biologists of this eountrv. If it he old t() some, it will be new to others. 



