“…1) was found to best fit the plotted points (log concentrations against geometric log doses) as contrasted to a straight line with a positive slope obtained by Holck, et al (5), in cats with the identical first five concentrations also using urethane anesthesia. 1) was found to best fit the plotted points (log concentrations against geometric log doses) as contrasted to a straight line with a positive slope obtained by Holck, et al (5), in cats with the identical first five concentrations also using urethane anesthesia.…”