IV 



Page. 

 Abstracts of publications of United States Department of Agricnltnre— Cont'd. 



Office of Experiment Stations 106 



Experiment Station Bulletin No. 2, Parf ii 106 



Miscellaneons HuUetin No. 3 106 



Division of Gardens and Grounds 107 



Papers on horticultural and kindred subjects 107 



Division of Statistics 107 



Report No. 86 (new series), July, 1891 107 



Fiber Investigations, Report No. 3 108 



Abstracts of reports of foreign investigations 109 



Experiment station notes i:^"i 



List of publications of the United States Department of Agriculture issued 



during August, 1891 137 



Listof station publications received by the Office of Experiment Stations during 



August, 1891 138 



SUBJECT LIST OF ABSTRACTS. 



CHKMI8TRY— ANALYSES— MKTHODS. 



Miscellaneous analyses at Colorado Station, D. O'Brine 82 



A rapid method for estimating nitrates in potable waters, G. Harrow 109 



BOTAN Y— M YC( )LOG y . 



Notes on Colorado weeds, C. S. Craudall 82 



Listof plants collected in western Mexico and Arizona, J.N.Rose 103 



Manual of the phanerogams and pterldophytes of western Texas, Polypetalre, 



J. M. Coulter 103 



Microbes and root tubercles in relation to the fixation of free nitrogen by 



peas, Scbloaing, jr., and Laurent 116 



Smut of grain, J. II. Panton 1<{7 



Potato blight and rot, L. R. Jones lOl 



Black knot on plums, J. II. Panton 127 



ENTOMOLOGY— APICULTURE. 



Report on apiary, C. M. Brose 82 



Raspberry gouty gall beetle, A. D. Hopkin-s 102 



Bark louse and pear tree slug, J. II. Pan ton 132 



Locust tree insects, A. D. Hopkins 102 



Three important clover insects, C. M. Weed 97 



Some common cabbage insects, C. M. Weed 97 



Farm and garden insects and notes of the season, A. D. Hopkins 101 



Preliminary report on black spruce insects, A. D. Hopkins 102 



Miscellaneous experiments in tbe control of injurious insects, C. M. Weed 96 



MKTKOHOLOGY. 



Meteorological observations at Colorado Station 84 



Meteorological observations at Massachusetts Hatch Station, June, 18iH, C. D. 



Warner 86 



Annual Report of the meteorological division of the North Carolina Station, 



1890, H. B. Battle and C. F. Von Herrmann 92 



Meteorological observations at Ontario Agricultural College and Experimentnl 



farm 127 



