Despite such support and development of the receptor concept, the critics remained vocal. Important was the position of Sir Henry Dale, who was awarded the Nobel Prize for his neurotransmitter research in 1936. Dale was much more interested in the transmitter substances in the nervous system than in their potential receptors. As late as 1943, at a conference of the Faraday Society in London, he called the worth of the receptor concept for explaining specific drug action into question:It is a mere statement of fact to say that the action of adrenaline picks out certain such effector-cells and leaves others unaffected; it is a simple deduction that the affected cells have a special affinity of some kind for adrenaline; but I doubt whether the attribution to such cells of “adrenaline-receptors” does more than re-state this deduction in another form[24].