The employer's responsibility was limited to certain rather specific minimum obligations, which it was felt that any worker had the right to demand. Even as to these obligations, the employer was not an insurer of safety, and was liable [liable, to be] only for a failure to exercise reasonable care, and in addition, the employer was not responsible [responsible, to be] for the negligence of fellow-servants of the injured worker, as distinguished from the employer's misconduct. The result was that for the great majority of industrial accidents [accident] there was no recovery, either because no lack of proper care could be charged against the employer, or because the worker was taken to have assumed the risk.