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THE ORCHID REVIEW. 



[March, 1904. 



this difficulty it is possible that a few of the records included may require 

 amendment in the future, but a few of the more doubtful, together with 

 those of which the parentage could not be ascertained, have been omitted 

 for the present. 



A multiplicity of names for the same hybrid has also given much 

 trouble, but this has been got over by classifying hybrids of identical 

 parentage as forms of one. Some of them may be regarded as distinct 

 varieties, others mere synonyms, but we have made no attempt to 

 distinguish them. Where plants have been figured as distinct varieties, 

 however, the names have been included. 



We have tried to make the work as complete as possible, but there may 

 be omissions, and we have reason to believe that certain hybrids have been 

 raised and not recorded. We hope that raisers will send in particulars of 

 these, also of any errors which they may detect in the records. It is 

 highly important that these should be as correct and complete as possible, 

 and in order to prevent them from again falling into error we intend to 

 publish the additions in monthly supplements in our pages, uniform with 

 the arrangement adopted in part 2, these to be incorporated in a second 

 edition of the work, should such be called for. 



It was intended to include the January additions in the present issue, 

 and they have been got together for the purpose, but as they are not very 

 numerous, and would be in advance of the work itself, they are held over 

 for a short time. 



The work has entailed numerous difficulties, but we hope its accom- 

 plishment, and the arrangements for recording future additions, will prove 

 an effectual solution of what has proved a very embarrassing question. We 

 hope to receive the active support and assistance of our readers in the 

 matter, and beg to call their attention to the circular enclosed with the 



Dendrobiums and Ammonia. — From the success I have had with 

 " miffy " Dendrobiums in Pine, Melon, and other houses, where some at 

 least of the heat is derived from fermenting material inside, I am positive 

 that an ammoniated atmosphere is of the greatest benefit to them ; and 

 although one can hardly introduce beds of leaves or manure into the Orchid 

 house, yet much may be done by damping with liquid manure or soot 

 water, sprinkling a little soot and lime about where drip will reach it and 

 cause a constant supply of ammonia to be given off, or by placing sulphate 

 of ammonia iu the heating troughs. The result will soon be seen in the 

 increased health of the plants, the leaves taking on a deeper green. — 

 H. R. H., in Journal of Horticulture. 



