Newton's lantern slide catalogue (1920s)

43, Museum Street, London, W.C.l. 213 BD effects of manures. These slides are made from a series of photographs of actual specimens grown with various manures, and mostly contain from four to eight samples in each elide. Beautifully Painted, 6s. Plain Photographic Slides, 2s. each. 1 Wheat. Experiment with and without Kitro- genous Manures 2 Barley. » » «« . u 3 Peas 11 » >» >» 4 Oats. n if if 5 Oats. Experiments with Green Manures 6 Peas and Oats. Experiments with and without Potash, Phosphoric Acid, and Nitrogen for comparison 7 Vetches. Experiments with and without Potash, Phosphoric Acid, and Nitrogen 8 Peas and Wheat. Yield of Experiments, with and wiihout various manures 9 Summer Rye. Experiments with and without Superphosphate, in autumn and spring 10 Summer Rye. Experiments with and without Phosphate Powder, in autumn and spring 11 Barley. Experiments with and without Super- phosphate and Phosphate Powder 12 Bailey, yield of experiiiientsshown in s ith-No. 11 13 Barley. Manurial Experiment on a Eoamy Soil. (1) withou'. Phosphoric Acid. (‘2) Wii- Plios- phoric Acid as Superphosphate. 3) With Phosphoric Acid as finely-pulveriscL Thomas’ Phosphate 14 Buckwheat and Peas. Experiments with Phos- phoric Acid and Potasli 1.5 Oats. Green Manuring Experiments 16 „ Yield of experiments with and without Green*Manures 17 „ Illustrating the Influence of Phosphatic Manuring on the Utilization of Nitrate Nitrogen 18 „ Experiments with and without Phosphoric Acid in different forms 19 Experiments with and without Supeiphosphate 20 Crop of Oats. Yield of experiments with various manures on (1) Clay Soil. (2) Soil rich in Humus , 21 Crop of Oats and Barley. Yield of experiments with and without Phosphoric Acid on Clay So 1 22 Vetches and Wheat. Yield of experiments with and without Potash, Phosphoric Acid, and Nitrogen 23 Wheat. Experiments with (1) No Manure. (2) Potash and Phosphoric Acid, (3) Potash, Phosphoric Acid and Nitrogen 24 Maize. Manurial Experiments with Phosphoric Acid, Po'-.ash, and in addition, Nitrogen as Nitrate of Soda 2a Hemp. Manurial Experiments with Phosphoric Acid, Potash, and in addition, Nitrogen as Nitrate of Soda 26 Tobacco. Manurial Experiments with Nitrogen and Superphosphate, and Nitrogen and Phos- phate'of Potash 27 Beetroot. Manurial Experiments with Phos- phoric Acid, Potash, and in addition. Nitrogen asiNitrate of Soda 23 Carrots. Manurial Experiments with Phosphoric Acid, Potash, and in addition, Nitrogen as Nitratejof Soda 29 Do. as^ above, showing roots 30 Field Beans. Manurial Experiments with Phos- phoric Acid, Potash, and in addition, Nitrogen as Nitrate of Soda 31 Peas. Manurial Experiments with Phosphoric Acid, Potash, and in addition, Nitrogen as Nitrate of Soda 32 Potatoes. Manurial Experiments with Phos- phoric Acid, Potash, and in addition, Nitrogen as Nitrate ol Soda 33 Clover. Experiments with and without Phos- phoric Acid in form of Superphoi^phate anJ Thomas’ Phosphate Powder 34 Fuchsia. Manurial Experiments in Hot-bed Soil. Without Nutritive Salt Mixture and with small and larger quantities of Albert’s Highly Concentrated Horticultural Mixture 35 Geraniums in Hot-bed Soil. Manurial Experi- ments with and wiihout Albert's Highly Con- centrated llortioulia. ai .\Iixtuie.. The following list of Slides &c., has been compiled by Sir E. J. RnssBLi,, of Rothamsted Experimental Station. The material is selected from books entitled “Soils and Manures^ by Sir^E. J. RusselXj ; “Manuring for Higher Crop Production,” by Sir E. J. RussEiii,; The Rothamsted Experiments,” by A. Hall and Sir E. J. Russell. 36 Tennatoes growing on a light sand with varying food supply. ' Pot 47, Without Manure. Pot 65, One Dose of Ma- nure. Pot 63, Two Doses of Ma- nure 37 Tomatoes grown in good soil, all equally manured but receiving different quantities of water. Pot 17, No Water added. Pot 19, 5 per cent, added and the moisture then kept constant. Pot 21, 10 per cent, added and the mois- ture then kept constant. Pot 24, 12 J per cent, added and the moisture then kept constant 38 Tomatoes grown in soil receiving successively in- creasing doses of manure in pots. Passing from left to right: Pots 3, 5, and 7, no manure. Pots 86, 38, 39, ten doses of manure. Top row, moisture maintained at 6 per cent. Middle row. moisture main- tained at 10 per cent. Bottom row, moisture maintained at 124 per cent. 39 Curves shewing weights of crop produced with vary- ing supplies of water and 0.01 and 0.02 grams of nitrate of soda per pot 40 Donga.s in South Africa caused by heavy rainfall 41 Alkali Spot. Fremcnt, Nebraska 42 Treeless Prairie. First Stage of Development 43 „ .. Last (An Experimental Farm) 44 Crop Map and Isotherms of Great Britain 45*Carrots grown on various types of soil 46 Chalk Subsoil. This land can be cultivated al- though the soil is thin 47 Gravel Subsoil. This land cannot be cultivated because the soil is too thin for a gravel subsoil 48 Mechanical ooraposition of soils well adapted for Wheat 49*Mechanical composition of soils well adapted" for Potatoes 50 Poor Clay Country. Roads vride but not all made up. Hedges and Gates not well kept 61 Effects of Fertilisers on Swedes. Pot 1, complete manure—phosphates and nitrogen compounds. Pot 3. Incomplete ma- nure—phosphates and potash, but not nitrogenous compounds. Pot 5, no manure 52 Effect of Potassic Fertilisers on Mangolds. Left- hand Plot, superphosphates and nitrogenous manure, no potassium salts. Right-hand Plot, super- phosphates, m'trogenous manure, and potassium salts 53 Curves shewing effect of Farmyard Manui’e on Water Content of Soils. 54 The loss in making Farmyard Manure is much re- duced by keeping the animals under cover ♦ Denotes that full details are shown on the Slide.