he has written three stage plays and several television series so far. others separate between the expressions, using the expression "innovation system" for labelling a planned innovation environment, and "innovation ecosystem" for an ecological innovation environment. clark found it deserted and ordered it burned. if none is indicated, the date is unknown. to test this, they placed 36 infants, six to fourteen months of age, on the shallow side of the visual cliff apparatus. extending to the rear of the main block are later wood frame additions. located several miles north of campus, the center is situated on two hundred thirty-five acres. 