STATISTICS 



I. The Number .if Articles. 



Total minil.rr of entries or ai-ticles. inchidiiig 

 cross-retV'rencfs : 



Volume 1 1270 



Volume 11 lL!ti:-! 



Volume 111 Il.")9 



Volume IV IIOS 



4357 



II. The Number of Plants. 



The Dumber of genera deseritied: 



Volume 1 820 



\ olume II ti28 



Volume III :!."■>! 



Volume IV 401 



2255 



Total uunil'er of speoies fully described (in 

 black-faced t}"pe I : 



Volume 1 2924 



Volume II 2675 



Volume 111 1405 



Volume IV 1789 



8793 



Total uumlier of varieties (of species I of all 

 grades ; 



Volume 1 1187 



Volume II 982 



Volume 111 ti28 



Volume IV 838 



3635 



Total uumlser of s^-nouyms (in Italic type) : 



Volume 1 2446 



Volume II 21(14 



Volume III ]24:i 



Volume IV lti8'J 



7482 



Total luimber of species in supplementary lists 

 (in Italic type) : 



Volume 1 23.51 



Volume II Siil 



Volume III .'76 



Volume IX 733 



4524 



Total luimber of Latin liinomial and trinomial 

 plant names accounted for ^ api'roxiniate I 244,34 



III. The Number of Spe.'ies (in bl.\i'k - faoed 



TYi'E) N-^TivE T(:> North Amki;I(;'.v north 

 or Mexico : 



Volume 1 068 



Volume II 03] 



Volume III 416 



Volume IV 704 



2419 



IV. The Dates of Publication : 



Volume I February 14, 1900 



Volume II luly IS, 1900 



Volume III April 23, 1901 



Volume IV FebrulirT 26, 1902 



(xvj 



