LIST OF ILLUSTRATIONS 
A modern range of houses at Toledo, Ohio____----__-- 
Typical three-quarter-span houses of the Boston district 
Two-acre three-quarter-span hillside house near New 
Castle, Pa. -----. 
Boiler room and packing house ‘of a ten-acre range near 
‘Toledo: Quior asso. Ce asses oo eee eh eos 
Wide corridor in a Toledo, Ohio, PANE St Sat 
Typical even-span range of narrow units__--___-__-____ 
Even-span houses with continuous ventilators__________ 
Lean-to house. Note protected frames_.---_---______- 
A modern steel-frame house. Note large door_________ 
A satisfactory type of semi-iron construction 
A house of truss construction_-------..---_----_______ 
Semi-iron construction, showing posts and purlin sup- 
ports set in concrete__------_-__---------------__-__ 
A common form of wood wall sill an 
Iron eave plate. Note roof bar and post bracket--_____ 
Wooden gutter : pes 
Iron gutter with roof bars connected. Also shows con- 
nections with iron post 
(a) Typical roof bar. (b) Typical end bar____________ 
Semi-iron house. Note large door ‘and ventilators on 
sides and end es 
A satisfactory machine for operating ventilators_-_____- 
A corridor leading to the packing room in a large range 
Bench with pipe-frame support 
Concrete pillars for bench supports 
Walk with concrete sides. Peerless tomato in an Iron- 
dequoit (New York) house a ni 
An alley of liberal width in a cucumber house_--------~ 
Roadway in a two-acre house 
Manure spreaders, plows and harrows are often used in 
modern houses 
Manure is usually placed in compost piles near the 
houses. (In this instance, mushroom houses) ------- 
Small smoothing harrow__---------------- 
Pan steam sterilization in operation at the Indiana Agri- 
cultural Experiment Station ease 
A portable steam engine may be used for ‘sterilizing 
small houses 
XV 
