PART II.—BOOK STORAGE 261

Shelving, generally 262

Shelves in Reading Rooms 269

Wall-shelving 271

Floor Cases 273

Radial Cases 274

Shelf Capacity 277

The Poole Plan 278

Stacks generally 280

The Stack Shell 283

Use of Stack by Readers 284

Carrels 286

Stack Details 288

Stack Lighting 292

Stack Windows 294 True 294 Defective 295 False 295

Stack Heating and Ventilation 296

Stacks Up and Down 297

Stack Towers 297

Stack Capacity 298

Sliding Cases 299