An electric storage battery and method of manufacture thereof. The first lens group has a first-a partial lens group and a first-b partial lens group arranged on an image side of the first-a partial lens group with an air space and is constructed such that the first-b partial lens group moves along an optical axis direction upon focusing from infinity to a close-range object. The final integrated PDF form is then generated from the data indicating the location of the overlay image on the underlying JPEG form. After successfully sending the Tag identification data from a Tag to the Reader, the Tag switches to the other state from the specified state. An exemplary compound of the invention was shown to be an effective inhibitor of prostate cancer pathogenesis. A processor is mounted in the housing and is electrically coupled to each of the food delivery assemblies for selectively turning on the motors.