And A Jekyll-Hyde Appearance At Research Park . . . Grater Ann Arbor Research Park, by and large, appears to be anything but park-like. Weeds have grown to such a height as to obscure a fire hydrant (top picture) but not quire high enough to hide the pile of broken cement in a field adjacent to one of the "park's" firms (middle photograph). The bottom picture [this photo] contrasts the well-cared-for lawns of those firms which have moved into the park with the unkempt conditions of the remaining two-thirds of the property. The fire hydrant is across the street from on of the fine buildings in the "park" and might well be difficult for firemen to find in an emergency situation. A Chamber of Commerce spokesman said the weeds would be cut in the near future, possibly next week. The height of the weeds far exceeds the city's legal limit of 16 inches.