Life Cycle, The, 9, 12, 15, 20, 34,69, 



77, 178 



Lindquist, B., 157, 167 

 Lord, Russell, 171 

 Lug boxes, 51, 103-127; compost 



for, 109-112; gunny sacks, 106; 



harvesting, 114-116; impregnation, 



113; loading, 112; marking, 116; 



plans for, 120, 121 ; preparation, 



108; separators, 105; supports, 



105; watering, 101, 114 

 Lumbricus terrestris, 23, 90, 97 

 Lunt, H. A., 153, 158 



Man and the Earth, by Nathaniel 

 Southgate Shaler, 35 



Manure, 25, 70, 110, 126, 149; earth- 

 worm, 178 



Manure worm, 24, 25, 89, 96 



Marbut, Curtis Fletcher, 41 



Mason, Arthur J., 41 



Mechanization, 12, 80 



Megascolides Australis, 23 



Miscellaneous Publications, United 

 States Department of Agricul- 

 ture, 171 



M., Roy S., 118 



M tiller, 156 



Murinov, A., 51 



"My Grandfather's Earthworm 

 Farm," by Dr. George Sheffield 

 Oliver, 66-76, 82, 87, 148, 149 



New York State College of Forest- 

 ry, 41, 42 

 Night crawlers, 23 

 Night lions, 23, 90 

 Nile Valley, The, 43-47, 56, 67 

 Non-cultivation method, The, 78-80 



Ohio, 65, 66, 67, 72, 84, 87, 88 



Ohio Biological Survey, 72, 96 



Ohio State University, 72 



Ohio State University Farm, 40, 72 



Oligochacta, 23 



Oliver, Dr. George Sheffield, 65, 66, 



87-98 



Olson, Dr. Henry W., 96 

 Orchards, 74, 75, 76-83, 102; use of 



earthworms in, 25, 82, 83, 117 

 Orchard worm, 90, 97 

 Oregon Agricultural Experiment 



Station, 26 



Pheretima bucculenta, 157 



Phylum annelida, 23 



Plans, for Culture Beds, 128-130; 



for Earthmaster Culture Beds, 145, 

 147; for Lug Boxes, 120, 121 



Plowing, 40, 71, 72, 75, 82, 148, 151 



Plowman's Folly, by Edward H. 

 Faulkner, 81, 148 



Powers, W. L., 26, 156, 163, 167 



Principles and Practice of Agri- 

 cultural Analysis, by Dr. Harvey 

 W. Wiley, 30 



Productive Soils : The Fundamentals 

 of Successful Soil Management 

 and Profitable Crop Management, 

 by Wilbur Walter Weir, 48 



Puh, P. C., 156, 157, 163, 167 



Rainworms, 23, 24, 90, 97 



Resistance to pests and plant dis- 

 eases, 55 



Rickett, Harold William, 172 



Robertson, J. D., 156, 157 



Rocks and Soils : Their Origin, Com- 

 position, and Characteristics, by 

 Dr. Horace Edward Stockbridge, 



Rubins, E. J., 158 

 Russell, E. J., 155, 165, 167 



Salisbury, E. J., 156, 167 



Science Society of China, Biological 

 Laboratory Contribution, Zoolog- 

 ical Service, 167 



Shaler, Nathaniel Southgate, 34, 35 



Sheffield, George, 66, 76 



Small-bristled ringed worm, 23 



Soil, bacteria, 36, 76, 77, 163, 177; 

 building, 12, 13, 14, 15, 32, 33, 34, 

 35, 37, 42-46, 57, 62, 64, 76, 170, 

 173, 174; chemical elements, 22, 

 29, 30, 35, 49, 51, 52, 53, 54; 

 definition of, 34; destruction of, 

 12; source of plant and animal 

 life, 13, 20, 31, 35, 170; subsoil, 

 48, 49, 74, 164; chemical elements 

 of, 49; plowing, 74; topsoil, 13, 

 22, 32, 35, 42, 48, 49, 50, 52, 173, 

 177-179; mass production of, 42, 

 57, 175, 177, 179 



Soil and Cultivation, by Milton 

 Whitney, 173 



Soil Science, 155, 167 



[183 



