No. 7. DEPARTMENT OF AGRICULTURE. 739 



No. 31.* The Economic Side of the Mole, 42 pages, 1898. 



No. 32.* Pure Food and Dairy Laws, 30 pages, 1898. 



No. 33.* Tabulated Analyses of Commercial Fertilizers, 42 pages, 

 1898. 



No. 34.* Preliminary Report of the Secretary, 150 pages, 1898. 



No. 35.* Veterinary Medicines, 23 pages, 1898. 



No. 36.* Constitutions and By-Laws, 72 pages, 1898. 



No. 37.* Tabulated Analyses of Commercial Fertilizers, 40 pages. 

 1898. 



No. 38.* Farmers' Institutes in Pennsylvania, 8 pages, 1898. 



No. 39.* Farmers' Institutes in Pennsylvania, 88 pages, 1898. 



No. 40.* Questions and Answers, 206 pages, 1898. 



No. 41.* Preliminary Reports of the Department, 189 pages, 1899. 



No. 42.* List of Creameries in Pennsylvania, 88 pages, 1899. 



No. 43.* The San Jos6 Scale and other Scale Insects, 22 pages, 

 1899. 



No. 44.* Tabulated Analvses of Commercial Fertilizers, 62 pages, 

 1899. 



No. 45.* Some Harmful Household Insects, 13 pages, 1899. 



No. 46.* Some Insects Injurious to Wheat, 24 pages, 1899. 



No. 47.* Some Insects Attacking Fruit, etc., 19 pages, 1899. 



No. 48.* Common Cabbage Insects, 14 pages, 1899. 



No. 49.* Methods of Protecting Crops, etc., 20 pages, 1899. 



No. 50.* Pure Food and Dairy Laws of Pennsylvania, 33 pages, 

 1899. 



No. 51.* Tabulated Analyses of Commercial Fertilizers, 69 pages, 

 1899, 



No. 52.* Proceedings Spring Meeting of Round-up Meeting, 

 Farmers' Institute Managers, etc., 296 pages, 1899. 



No. 53.* Farmers' Institutes in Pennsylvania, 1899-1900, 94 pages, 

 1899. 



No. 54.* Tabulated Analyses of Commercial Fertilizers, 163 pages, 

 1899. 



No. 55.* The Composition and Use of Fertilizers, 126 pages, 1899. 



No. 56. Nursery Fumigation and the Construction and Manage- 

 ment of the Fumigating House, 24 pages, 1899. 



No. 57. The Application of Acetylene Illumination to Country 

 Homes, 85 pages, 1899. 



No. 58. The Chemical Study of the Apple and Its Products, 44 

 pages, 1899. 



No. 59. Fungous Foes of Vegetable Fruits, 39 pages, 1899. 



No. 60.* List of Creameries in Pennsylvania, 33 pages, 1899. 



No. 61.* The Use of Lime in Pennsylvania Soils, 170 pages, 1900. 



No. 62. A Summer's Work Abro.ad in School Grounds, Home 

 Grounds, Play Grounds, Parks and Forests, 34 pages, 1900. 



No. 63. A Course in Nature Study for Use in the Public Schools, 

 119 pages, 1900. 



No. 64. Nature Study Reference Library for Use in the Public 

 Schools, 22 pages, 1900. 



No. 65. Farmers' Library List, 29 pages, 1900. 



No. 66.* Pennsylvania Road Statistics, 98 pages, 1900. 



No. 67. Methods of Steer Feeding, 14 pages, 1900. 



•Note.— Edition exhausted. 



