I see from the Michigan Academy program that you are down for papers, one on the new estimate of Niagara I would liked to have heard. Perhaps you can give me the gist of it when you write, and also tell me something of the meeting. I have not heard from anyone in Ann Arbor, and the newspaper accounts are very meager even though we have the Michigan Daily and the Ann Arbor Daily News sent to us. Dr C.R. Keyes has moved to Tucson and brought his large library here. It is probably the largest private library of any American geologist, filling a room about 18x30 on all 4 sides to a height of nearly 10 feet. The only places not occupied by books are the door and the fireplace. Skylights light it from above. I don't know how many thousand books there are, but he built an addition on the house to hold it. It contains many reports not in the University Library, so I hope he will give the students access to it. Mrs Keyes was a mathematics teacher in the University before they were married, and still holds the position. They live about 4 miles N of the city in a rather showy place with much green foliage over several acres of ground. Prof Davis and his new wife are here for the winter and he is giving lectures on Physiography. He is remarkable active for a man in his 80th year. Last Sunday he conducted an excursion to the Santa Catalina mountains and seemed as full of pep as any of the students. He wore a straw hat, which was the only hat of the kind used by any of persons on the perty and it seemed rather odd as the day was somewhat chilly and overcoats were being worn. Prof Ransome has gone to CA and his place is filled by Prof Butler who has done considerable work for the USGS in the western mountains. He seems a rather light weight man compared to Ransome but may be well informed on subjects of local interest. He is about 50 years old. Two weeks ago I passed into the "retired" list of government employees, having reached the age of 70 years. I no longer have franking privileges, nor can I clal myself a member of the Survey. Arrangements have been made with Dr Ashley for him to assume my salary until the end of May so I can be paid for writing up my PA work done in 1926-1928. After that I will only have a pension, but my income from investments now amounts to about $3000 per year, we may not need to draw on the principal to meet expenses. I don't know whether the pension was raised in the last Congress session, but if not, it will be $1000 per year. It may be some months before I begin receiving it for I got a notice Feb. 28 that my application had just reached the Pension Office and would be taken in order. My health has been very good here, so we are now talking of moving here next fall. In that case we will either rent or sell the Ann Arbor house. We can probably rent it to good advantage for the school year beginning in September. I expect to be in Ann Arbor from June to September working on a report on the Upper Ohio drainage basin; this has been my main work here until March 10 when I switched over to the PA reports. I hope you and Mrs T have stood the severe winter nicely and that we may have a visit from you in Ann Arbor in the summer. Mrs L joins in best wishes to you both. P.S. I rec'd a very complimentary letter from the Director Geo. Otis Smith, signed also by Mendehall and Alden at the time of my retirement. Alden wrote that the Director had sent a copy of it to Cattell so if you see it appearing in Science you will please understand I had nothing to do with sending it there for publication. I fear it might be so construed by readers of Science and considered a rather egotistical action on my part. I would prefer not to have it appear there. Additional Note on top of page: Mail address - Box 335, University Station, Tucson, AZ; Residence and telegraph address -- 817 E Fifth St., Tucson, AZ