"'Ilse will prove valuable to us, for--though I have given her no instruction--her master has achieved the very same results with her as I have with Rolf.[8] This is what took place the other day: My dear husband went to see our reverend friend and having arrived too early for Divine Service, seated himself on a high stone in the neighbourhood of the little church and not far from the parsonage. Our friend saw my husband and came out, accompanied by Ilse, to fetch him into the house. Ilse jumped up against my husband, wagged her tail, licked him--and showed so much exuberant affection that her master was quite surprised, and asked her: [8] Ilse was barely two months old when she came into the possession of her master, on 20 April, 1914. "'Do you know this gentleman?' To which Ilse replied: 'No!' adding, as though as an after-thought--'Rolf!' She had evidently scented Rolf (who is her father and of whom she is very fond) about my husband's clothes'" "B. REPORT ON THE DOG HEINZ "A second dog, by name Heinz, who came into the possession of Mr. Justice Leser in Mannheim, has proved himself to be an excellent arithmetician, and this without ever having been worried with instruction. In the same way as Rolf he gives two raps for 'yes' and three for 'no,' while four express that he is 'tired.' "Mr. Justice Leser reports: "If I ask Heinz whether he will do arithmetic he invariably raps "2," even though sometimes accompanying his assent with a yawn. I am generally obliged to hold out the prospect of some reward as an inducement to do his sums. I should have preferred his rapping against some article one could hold in one's hand, or that he could be induced to "rap out" on a board setting forth the numbers, and which might be placed on the floor before him; but to neither of these alternatives will he agree, having since his earliest youth learnt to rap in the same way as Rolf does. He will, however, not only rap for me, but for any person he knows well, solving such problems as: 3 + 4 - 6, or [121rt] + 3, or 14/2 + 4, or 3^2, and he seldom makes a mistake, even when the sum he may be asked merely resembles the form of arithmetic he has learnt. But he generally gives up after two or three sums and is generally distracted. He can read the figures too, and generally gives a correct solution to sums which have been written down for him and which I myself have not read. Like Rolf, he only looks at the paper sideways. He reads very reluctantly. His memory is excellent; especially quick is he at recognizing those persons again who have at any time had to do with him.' "When I was in Mannheim on 22 March, 1916, Mr. Justice Leser was kind enough to show me the dog. I put some problems to it verbally and was able to satisfy myself as to its abilities in the matter of arithmetic. Of those then put by me I still call to mind the following: '24 / 3 - 3?' Answer: '5,' and '[10,000rt] - 87?' Answer: '13.'[9]