83G 
Vporhelm, George (1712-1787) 
Traits sur la jacinte. Contenant la maniere de la cul- 
tiver suivant 1’experience qui en a StS faite. Harlem, 
I. & J. EnschedS, 1752. 123 p. (Dept. Agr.; Mass. 
Hort. Soc.; Brit. Mus. Nat. Hist.; E. H, Krelage') ( 
There was no Dutch edition of this, but 
Mr. Krelage owns a contemporary MS: ”Verhan- 
deling over de hyaointhen" (1754), translated 
from the French by a ’’Liefhebber van Flora.” 
- 2. ed,, rev. et cor. par 1’auteur. Harlem, 
C. H, Boim, 1762. 127 p. (Dept. Agr.; Lindley Lib.) 
^ohjn 
- 3, 4d., rev. et angm. Harleff, typ. Beets, 
1773. 142 p. (Brit. Mus.; Lindley Lib.; Bib. 
Landb. Hoogesoh. V/ageningen) 
Wageningen, Bull. Cat. 17(1930), no.11, 23153, 
labels this in brackets ”2e druk,” altho Pritzel, 
2d ed., Brit. Mus. Cat., and also Berg, Cat. Bib. 
Hort. Imp. Bot. Petropolitani (1852), p.375, give 
as 3d edition. 
- [English] A treatise on the hyacinth, containing 
the manner of cultivating that flower, on the experiences 
lately made by George Voorhelm, and according to the method 
practised by the famous flowrists Aalst Van Nieukerk and 
James Mol and Co. at Haarlem in Holland. Translated into 
English. London, To be had of Mr. Bartholomew Rocque 
flowrist at Walham Green near Fulham, at Mr. John Rocque 
topographer to his royal highness the prince of Wales, at 
the end of Round court in the Strand, and at Mrs. Cooper’s 
in Pater-noster row, and nowhere else, 1753. 120 p. 
Wageningen, Bull. Cat. IV (1930), no.11, item 23154; 
E. H. Krelage, Haarlem) 
Title from Roberts, "The Voorhelms of Haar¬ 
lem," Jour. Roy. Hort. Soc. 60:199-208 (1935). 
In footnote on p.202 Roberts says: "It is nec- 
cessaiy here to correct an error in Johnson’s 
History of English Gardening, p.206, and copied 
apparently by all subsequent writers (including 
Harman Payne); there is no authority for the 
statement that it was ’translated from the Dutch 
by Bartholomew Rocque,’ though it is possible he 
may have done so." Johnson may perhaps have 
borrowed the error from earlier sources, because 
the work is entered under Rocque in Weston, Cat. 
(1773), p.71, and Watt, Bib. Brit., col.811, as 
well as by later bibliographers. 
