NO. 10 ILLUSTRATIONS V 



Page 



31. Cycles of 23 years in Pleistocene varves. Average results of 115-year 



intervals 74 



32. Cycles disclosed in varves and tree-rings of Eocene age 76 



33. The 23-year cycle in the precipitation of Peoria, 111 78 



34. The 23-year cycle in the temperature departures of New York City 79 



35. Sample forecasts and verifications 81 



36. Eleven-year forecast for Bismarck, N. Dak., with verification. Fore- 



casts made as an entity 82 



37. Eleven-year forecasts for Vienna, Austria, and North Platte, Nebr., with 



verifications. Forecasts made step by step 83 



38. Comparison of stations with respect to phase-change of periodicities 85 



