10 DEPARTMENT OF AGRICULTURE BULS. 801-825. 



Leaf hopper — Continued. Bulletin 



rose: — No. Page, 



character of injury to apple nursery stock 805 22 



{20— 2Q 

 „2_oq 



food plants 805 21-22 



historical notes 805 20-21 



Leaf hoppers — 



similar to the apple leaf hopper, habits, etc 805 6-7 



two, injurious to apple nursery stock, bulletin by A. J. Acker- 

 man 805 1-35 



Lemon — 



Eureka — 



history and variability 813 3-6 



strains, description, and value 813 13-23, 78 



Study of bud variation, bulletin by A. D. Shamel and 



others 813 1-88 



industry — 



California shipments, 1887-1918, acreage, etc 813 1-3 



importance 815 1-2 



Lisbon — 



bud variations, data 815 12-62 



' history of variety in California 815 2 



important strains, descriptions 815 6-11 



isolation of strains by bud selection 815 64 



strains, comparative value 815 62-64 



study of bud variation,, bulletin by A. D. Shamel and others . 815 1-70 

 orchards — , 

 , frost protection, bulletin by A. D. Shamel, L. B. Scott, and 



C. S. Pomeroy... .".. 821 1-30 



heating, cost of equipment and work 821 24-25 



trees — • 



{10—22 

 25-29 



performance records, methods of keeping 815 5-6 



planting, directions 815 67-68 



records, presentation of data 813 25-78 



Lemons — ^ 



Eureka — 



seed content, studies 813 77-7 8 



yields of fruit of different grades 813 63-77 



picking dates, California and sizes of fruits 813 63, 72 



varieties, important in California 813 2 



Lettuce growing, soil disinfection, experiments 818 7-8, 9, 12 



Lightning, protection for cotton warehouses .' 801 73 



{17 18 

 19 27 

 Lisbon. lemon, yields of merchantable and frozen fruits; comparison 



with Eureka lemon 821 27-28 



See also Lemon, Lisbon. 



Loader, hay, types, day's work 814 26-27 



Loading, hay, day's work, by hand and by machinery 814 25-27 



Locust, honey, description, use as street trees, and regions adapted Q^nj 17,18, 



to ^^^l 19, 26 



r 17 18 



London plane tree, description and use as street tree 816-^ 19 42 



Long Island, Matinecock Neighborhood House, origin, cost, activi- 

 ties, and uses-. 825 11-16 



Louisiana, pear industry, note 822 12 



Lumber, jack pine, cut and value. United States and Canada 820 24-25 



Magnolia, description, use as street tree, and regions adapted to 816 17, 19, 27 



Maidenhair tree, description and use as street treet 816 17, 19, 25 



Maine — 



oats, yields of several varieties, experiments 823 8 



pear industry, magnitude and varieties 822 5 



