Periodical Literature . 
CXXVll 
Transactions of the County of Middlesex Natural History and Science 
Society 1887-1888. 
Barraclough : Fossils of the Flint. 
Rousselet : On some methods of collecting and keeping pond-life for 
the microscope. 
Natural History Transactions of Northumberland, Durham, and New- 
castle upon Tyne. Yol. X, Part 1. 
Howse : Contributions towards a Catalogue of the Flora of the Car- 
boniferous System of Northumberland and Durham. 
Transactions of the Edinburgh G-eological Society. Vol. V, Part III. 
Melvin : On Hutton’s Views of the Vegetable Soil or Mould, and 
Vegetable and Animal Life. 
Transactions of the Hertfordshire Natural History Society and Field Club. 
Vol. IV. 
Hopkinson : Report on phenological phenomena observed in Hertford- 
shire during the years 1885-86. 
Lloyd : Wild plants, their attributes and names. 
Pryor : Notes on some Hertfordshire Carices. 
Campbell : The Hessian Fly. 
Fordham : A Naturalist’s calendar for the northern border of Hertford- 
shire. 
Robinson : Observations on Diatomaceae from the neighbourhood of 
Hertford. 
Transactions of the Royal Scottish Arboricultural Society. Vol. XII, 
Part 1. 
Bailey : Forestry in Hungary. 
Brandis : The proposed School of Forestry. 
Cadell : Forest Administration in the Canton Vaud, Switzerland. 
Brandis : Dr. Cleghom’s Services to Indian Forestry. 
Methven : Deciduous Trees, with Ornamental and Coloured Foliage, 
useful in Landscape Forestry. 
Dodds : The Plantations on the Estate of Wentworth, Yorkshire. 
Webster : The Plantations on the Penrhyn Estate, North Wales. 
Transactions of the Leicester Literary and Philosophical Society. Parts 
VI-VIII. 
Mott : The native trees of Leicestershire. 
: The cause and the limits of organic growth. 
Transactions of the Manchester Geological Society. Vol. XIX ( continued ). 
Williamson : On the fossil trees of the Coal-Measures. 
Transactions of the Royal Society of Edinburgh. Vol. XXXV (1887-88). 
Nos. 1-7. 
Kidston : On Neuropteris plicata , Sternb. and Neuropteris reciinervis , 
Kidst. 
— : On the fossil Flora of the Staffordshire coal-field. 
Philosophical Transactions of the Royal Society of London. Vol. 179 
(1888). 
Sanderson : On the Electromotive Properties of the Leaf of Dionaea in 
the excited and unexcited states. 
Transactions of the Pathological Society of London. Vol. XXXIX. 
Crookshank : An investigation into the so-called Hendon cow disease 
in its relation to scarlet fever in man. 
— — : Streptococcus alleged to be the contagium of scarlet fever. 
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