There are many attempts to identify the key symptoms of remedies, but few have succeeded as well as H.C. Allen. Several generations of homeopathic doctors have successfully worked with this work, such as the physicians from the renowned school in Calcutta. With its clinically focused approach, they successfully treated severe diseases. The modern psychological emphasis has somewhat overshadowed this approach today, but the two methods can complement each other well when one is familiar with them and knows how to use them. For the sake of quicker reference, we have reorganized the original continuous listing of symptoms into a head-to-toe format. This allows for faster identification of what one is looking for at the bedside, without the need to read through an entire remedy to find a specific symptom.