No. 6. DEPARTMENT OF AGRICULTURE. 605 



leaves all around them. Roses protected in this way are almost 

 sure to pass our severest winters uninjured. 



We occasionally have winters when many varieties are hurt 

 amongst the hardy roses, and this sometimes occurs when the winter 

 has not been a very cold one, just what causes the injury at such 

 times we cannot always tell, but I think the sudden change from 

 bright sunshine to cold and from cold to bright sunshine during 

 the latter part of the winter is frequently responsible for it; a severe 

 cold spell after the sap has been excited is also injurious. When 

 the tops of the rose bushes are killed they may entirely recover if 

 they are on their own roots, but when budded or grafted plants 

 are killed down to the roots thev are lost; on that account it is 

 desirable to get own-root roses when it is possible. 



There are in existence about two thousand distinct varieties of 

 roses, and every year there are fifty or more new varieties intro- 

 duced. Out of this large collection it is reasonable to suppose that 

 varieties might be found to suit every lover of roses and every con- 

 dition of soil and climate. If in the future we cannot say that 

 there are more roses in our gardens and on ou" lawns, there is no 

 doubt that we can at least say there are more varieties of roses. 



A sample of a small one year old, own-root Tea rose bush in a 

 2\ inch pot was shown; also a sample plant, showing the growth 

 that a similar small rose bush had made in one summer. This bush 

 was taken from a bed where 6 bushes of the same variety (Madda 

 lena Scalarandis) were planted May 15. It was not the largest bush 

 of the 6, but was chosen as representing an average size. It was a 

 vigorous bush over 2 feet in height and was well branched. The 

 roses in this bed had shown bloom continuously from June 25th to 

 November 1st. Other varieties will do equally as well, and some 

 that will not grow quite as large, will bloom just as long and as 

 freely. 



Being asked how to prevent mildew, Mr. Jones recommended au 

 application of powdered sulphur. For Red Spider a vigorous syring- 

 ing with cold water is an effectual remedy. This insect is generally 

 worse upon plants that are not of vigorous growth. 



A Member. — Is the dwarf ''Crimson Rambler" desirable? 



MR. JONES. — It is probably the greatest blooming rose we have. 

 It will, under proper care, bloom all summer, or the entire winter. 



The following communication was read by the President: 



War Department, 

 Gettysburg National Park Commission. 



Gettysburg, Pa., January 17, 1906. 



To the Chairman, State Horticultural Association, Court House. 



Gettysburg: 



We wish to extend through you a cordial invitation to view the 

 Gettysburg National Park, Exhibit of Maps, Etc., in third story 

 Winters building, Charrbersburg street, Gettysburg. 

 For the Commission. 



E. B. COPE, 

 Engineer. 



