List of Contents to Vol. XII, 1919-1921. 
The Royal Botanic Garden . 
List of Staff at January 1921 
Rules and Regulations . 
Historic Notice 
Regius Keepers ‘ : 
Principal Gardeners from 1756 
Features of the Garden. With Key-Plan 
Teaching in the Garden 
Enumeration of Visitors, 1889-1920 
War Service Roll . 
The Maddeni Series of Rhododendron. With Nine “Text- 
figures. By J. Hutchinson, F.L.S. 
New Species of Rhododendron, IV. By | Professor Bayley 
Balfour, F.R.S. 
Regional Spread of Moisture in the Wood of Trees. II. Moisture- 
Spread in a Graft-Region. With Plate CLXV. a” 
Professor William Grant Craib, M.A. . 
Diagnoses specierum novarum in herbario Horti Regi Botanici 
Edinburgensis cognitarum. CCCCLI-D : 
Notes on certain Asiatic Sager ae William wee 
Smith, M.A. 
Species of Styrax in Herb. Léveillé. By William wae 
Smith, M.A. 
A New Erlangea. By Spencer Le M. Moore, B.Sc., F.L.S. . 
The Occurrence of Tracheides in the Nucellus of Stertphoma 
cleomoides, =e With Plate CLXVI. id Matthew 
Young Orr 
The Structure of the Ovular pice and the ae 
ment of the Testa in Cleome and Isomeris. With Plate 
CLXVII and Four Text-figures. By Matthew Young 
So ge : : : ‘ é ‘ ‘ 
iii 
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