EXACT DATES OF ISSUE 

No. Iss 
li. Rhodora (Boston) xix. 169-216. 11 Oct., 1917. 
lii. Harvard Ualy. Frese (Cambridge) 1-106. 28 Sept., 1917. 
liii. 1- 66. 26 Feb., 1918 
liv. pi = si 1-205. 18 June, 1918. 
lv. Proc. Am. Acad. seaia n) liv. 235-367. 8 Oct., 1918. 
lvi. Harvard Univ. Press (Cambridge) 1~ 61. 31 Dec., 1918. 
Iii. en (Some) xxi. 1~ 22. 10 Feb., 1919. 
viii xxi. 41- 67. 14 Apr., 1919. 
kx. Harvard Univ. Press (Cambridge) 1— 38. 30 Sept., 1919. 
lx. Proc. Am. Acad. (Boston) Iv. 3- 88. 12 Nov., 1919. 
lxi. oy Herbarium (Cambridge) 3- 80. 30 Dec., 1920. 
ii. st. Soc. Nat. Hist. (Boston) xxxvi. 3~103. 14 Mar., 1921. 
lxiii. Bhsdors as xxili. Pages and dates of issue on title page. 
lxiv. Gray Herbarium (Cambridge) 3-116. 18 Apr., 1922, 
eg - “ 3~ 54. 13 Sept., 1922. 
Ixvi. Bodom pHoston) xxiv. 125-142. 6 Sept., 1922. 
xxiv. Pages and dates of issue on title page. 
xviii. Gray Herbarium (Cambridge) 04. 18 Aug., 1923. 
Ixix. Rhodora (Boston) xxv. Pages and dates of issue on title page. 
3- 9 
Ixx. Gray Herbarium (Cambridge) 2. 1 Apr., 1924, 
Ixxi. sore nein n) xxvi. 61~ 79. 2 June, 1924. 
xxvi. Pages and dates of i ges on title page. 
ica. Gray poner (Cambridge) ~ 78. 24 Sept., 1924. 
Ixxiv. Phe 22 Apr., 1925. 
e ss . 3- 49. 10 Sept., 1925. 
Ixxv. 
