REPORT ON POTATOES GROWN IN 1873 AT CHISWICK:. 
75 
On the 29th of July the disease first made its appearance by- 
attacking the variety called Golden Gem, spreading in a few days 
with great rapidity to Lapstone, Fortyfold, Eed Emperor, nearly 
all the American kinds, and the Regent class. The haulm of all 
these sorts was soon destroyed ; and of the tubers, those of Regents 
suffered most severely, about nine-tenths being diseased, and of 
some kinds, although there was an excellent crop, scarcely a sound 
tuber remained. There was no variety that was not more or less 
diseased, those escaping with the least injury being the very early 
and the very late kinds. 
During the growing season the collection was examined fi.ve 
times by the Committee, and the first result arising from the 
experiment has been to reduce the 271 varieties to 115 ; and this 
number may be still further reduced by rejecting those that are 
inferior and worthless. 
The following is a list of donors who furnished the tubers for the 
experiment : — 
Messrs. Bell & Thorpe, Stratford-on-Avon. 
Mr. Thomas Benson, Petersham. 
Mr. George Biggs, Larkhall, Bath. 
Messrs. B. K. Bliss & Sons, 'New York. 
Mr. J. Burpitt, Wandsworth Common. 
Messrs. James Carter & Co., High Holborn. 
Mr. John Cave, jun., Lincoln. 
Mr. F. Dancer, Little Sutton. 
Mr. R. Dean, Bedfont. 
Messrs. Downie Laird & Laing, Forest Hill. 
Mr. Robert Fenn, Woodstock. 
Mr. H. J. Hardy, Bures, Essex. 
Mr. R. Hepplewhite, Chesterfield. 
Dr. Hogg, Stillyans, Heathfield. 
Messrs. E. H. Krelage & Son, Haarlem. 
Thomas Laxton, Esq., Stamford. 
Mr. Henry Minchin, Hook Norton. 
J. M. P. Montague, Esq., Bridport. 
Mr. Thomas Parsons, Acton Green. 
Rev. J. D. Peake, Laleham Rectory, Chertsey. 
Mr. J. Pritchard, Shrewsbury. 
Rev. W. F. Radclyffe, Oakeford Fitzpaine. 
Mr. J. Smith, Royal Gardens, Kew. 
Mr. George Scrimshaw, Chatsworth. 
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