subject method replicate observation 1 micrometer 1 300 1 micrometer 2 301 1 micrometer 3 296 1 microscope 1 318 1 microscope 2 317 1 microscope 3 322 2 micrometer 1 315 2 micrometer 2 301 2 micrometer 3 304 2 microscope 1 318 2 microscope 2 310 2 microscope 3 312 3 micrometer 1 356 3 micrometer 2 350 3 micrometer 3 350 3 microscope 1 385 3 microscope 2 370 3 microscope 3 380 4 micrometer 1 435 4 micrometer 2 400 4 micrometer 3 421 4 microscope 1 431 4 microscope 2 447 4 microscope 3 447 5 micrometer 1 296 5 micrometer 2 280 5 micrometer 3 270 5 microscope 1 298 5 microscope 2 311 5 microscope 3 316 6 micrometer 1 320 6 micrometer 2 325 6 micrometer 3 310 6 microscope 1 331 6 microscope 2 339 6 microscope 3 305 7 micrometer 1 320 7 micrometer 2 345 7 micrometer 3 310 7 microscope 1 335 7 microscope 2 332 7 microscope 3 331 8 micrometer 1 358 8 micrometer 2 360 8 micrometer 3 359 8 microscope 1 332 8 microscope 2 335 8 microscope 3 324 9 micrometer 1 250 9 micrometer 2 241 9 micrometer 3 241 9 microscope 1 272 9 microscope 2 259 9 microscope 3 276 10 micrometer 1 315 10 micrometer 2 330 10 micrometer 3 329 10 microscope 1 336 10 microscope 2 336 10 microscope 3 352 11 micrometer 1 268 11 micrometer 2 255 11 micrometer 3 270 11 microscope 1 283 11 microscope 2 287 11 microscope 3 275 12 micrometer 1 301 12 micrometer 2 302 12 micrometer 3 300 12 microscope 1 306 12 microscope 2 297 12 microscope 3 291 13 micrometer 1 220 13 micrometer 2 220 13 micrometer 3 200 13 microscope 1 229 13 microscope 2 236 13 microscope 3 244 14 micrometer 1 325 14 micrometer 2 312 14 micrometer 3 310 14 microscope 1 318 14 microscope 2 287 14 microscope 3 289 15 micrometer 1 355 15 micrometer 2 365 15 micrometer 3 353 15 microscope 1 360 15 microscope 2 363 15 microscope 3 371 16 micrometer 1 311 16 micrometer 2 310 16 micrometer 3 302 16 microscope 1 327 16 microscope 2 335 16 microscope 3 337