But in the beginning she had been most obviously delighted with the whole matter and leapt up at me in her joy and excitement whenever I said: "Lola, listen to sounds!" I have interested and amused many friends with this little exhibition, for it came as a surprise to many, especially as the sense of "pitch" is a comparatively rare one in most people. SCENT The keenness of a dog's nose is, of course, proverbial, and I have only put a few tests to Lola in this particular, yet, such as they are (proving perhaps no more than is already known) I will here set down. I put the first of these tests to her on the 17 April, 1916. I showed her a book belonging to my father and said: "Whose book is this?" She answered--"Father!" Then I showed her a glove and she told me it was mine. On 20 April, I showed her another glove belonging to a lady who was commonly known among us as "Mama" and Lola instantly replied with--"Mama!" This was followed by an important test in the afternoon of the same day. Four ladies, who were strangers to her had come to my father's place at Hohenheim, and in helping them take off their wraps I did not particularly notice where the different articles of clothing were laid. Lola was in the room at the time, I introduced the ladies to her singly and by name and later on sent her to fetch one of the hats. She fetched it and then sat expectantly before me. "To whom does this hat belong?" I asked. The answer was: "Sibol." I then asked Fraeulein Sibold who was present if it really was her hat and she said--"yes." Lola had remembered the name quite well but had left out the final "d"--an omission due to the fact that I am in the habit of "swallowing" that letter when saying the name. On 29 December, 1916, I gave Lola a biscuit and she seemed more than usually delighted with its smell--as if there was something familiar about it. "Why ever are you so pleased?" I asked, to which she replied--"Mama!" And it had actually been sent by the aforementioned lady familiarly known as "Mama." I then showed her another biscuit, saying "Is this too from Mama?" but she answered "no!" "Do you dogs always know by smell?" I said--and she rapped "yes!" On this same day another test failed owing to the impossibility of ascertaining the true name of the article in question.