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XX. Notices of Communications to the Horticultural Society, 

 between May 1st, 1819, and February 1st, 1820, of which 

 Separate Accounts have not been published in its Transactions. 

 Extracted from the Minute Books and Papers of the So- 

 ciety. 



May 4th, 1819- Sir Thomas Frankland, in a commu- 

 nication to the Secretary, read this day, stated the effect of 

 Charcoal in restoring to health a Hyacinth root, which in 

 January last was prepared for blowing in water, and after 

 being a short time in the glass, threw out only a few fibres, 

 which soon died at their extremities, the bulb becoming of- 

 fensively putrid. A table-spoonful of powdered Charcoal 

 was stirred into the water, which immediately corrected the 

 bad smell ; but on the second morning after, it began to re- 

 turn. Charcoal and water being renewed three times, at 

 two days interval, the root became perfectly sweet, and 

 flowered as well, and nearly as soon as one of the same va- 

 riety (Groot Vorst), which was placed on the chimney-piece 

 near it. 



May 18th, 1819- Mr. Thomas James, gardener to Ar- 

 chibald Paris, Esq. at Beech Hill, near Barnet, having, 

 in the last year, exhibited some well grown Onions to the 

 Society, communicated the method in which they had been 

 managed, the peculiar advantage of which, as Mr. James ob- 

 serves, is, that good Onions may be obtained by it, on a very 



