150 UNCLASSIFIED PUBLICATIONS [Bot. Absts., Vol. V, 



1075. Fuehner, H. Goldregen Tabak. [Cytisus laburnum tobacco.] Pharm. Zentral- 

 halle Deutschland 60: 336-337. 1919. — The leaves of Cytisus laburnum, when subjected to a 

 proper fermentation, furnish a product which can be used as a substitute for tobacco. The 

 smoke does not smell disagreeable, does not irritate the mucous membranes and acts on the 

 central nervous system in exactly the same way as tobacco. — H. Engelhardt. 



1076. Griebel, C. Beitrage zum mikroskopischen Nachweis von pflanzlichen Streckungs- 

 mitteln und Ersatzstoffen bei der Untersuchung der Nahrungs- u. Genussmittel. [Microscopic 

 demonstration of vegetable substitutes in food investigation.] Zeitschr. Untersuch. Nahrungs- 

 u. Genussmittel 38: 129-141. 1919. — Histological description of substitutes for bread and 

 meal, preserves, spices, and coffee. — H. G. Barbour. 



1077. Haberlandt, G. Food value of alfalfa used as a table vegetable. Sci. Amer. 

 Supplem. 88: 298, 312. 1919. [From Die Nahirurissenschaften (Berlin).] 



1078. Herter, W. Zur quantitativen Mikroanalyse der Nahrungs- und Futtermittel. 

 [Quantitative micro-analysis of food.] Zeitschr. Untersuch. Nahrungs- u. Genussmittel 38: 

 65-82. 1919. — Thorough theoretical discussion with numerous examples. — H. G. Barbour. 



1079. Howe, H. E. Research and cotton. Sci. Amer. 121 : 606. 1919.— A brief resume" of 

 what investigation has done in the past for this branch of the textile industries. — Chas. H. 

 Otis. 



1080. Howe, H. E. Using vegetable seeds. Sci. Amer. 121: 554. 1919. 



1081. Krafft, K. Ergebnisse der Untersuchung von Ersatzmitteln im Jahre 1918 und 

 Januar bis April 1919. [Investigation of food substitutes.] Zeitschr. Untersuch. Nahrungs- u. 

 Genussmittel 38: 213-221. 1919. — Substitutes for baking-powder and accessories, eggs, spices, 

 extracts, flavorings, honey, preserves, fulminating powder, tea and coffee, tobacco, fruit 

 juices, beer, and sausages. — H. G. Barbour. 



1082. Smith, E. Philip. Pollinosis ("Hay-Fever"). Jour. Botany 58: 40-44. 1920.— 

 A condensed account is given of the symptoms of hay fever. It is noted that the problem of 

 treatment has heretofore been approached from the standpoint of the immunologist. The 

 earliest work was that of Dunbar and Pratjsnitz, and their experiments were elaborate. A 

 list is given of the plants found by these authors to cause hay fever. The present author adds 

 various conifers to the list. He thinks the toxalbumen theory of Dunbar is scarcely tenable 

 because the contents of the pollen grain are separated from the nasal membrane by the wall 

 of the grain. Mechanical irritation or the production of substances on the surface of the 

 pollen are the only alternatives left. The author finds mechanical irritation insufficient to 

 account for the symptoms. On the other hand the grains are coated with tapetal debris 

 often in the form of an oily substance. The oil was extracted by ether from the pollen of 

 Hibiscus and was found to produce a blister when applied to the unbroken skin of the fore- 

 aim. Very similar results were obtained with the pollen of Plantago. The cases of Primula 

 obconica and sinensis are cited to show that such irritating oils are produced by plants. If 

 this theory of the cause of hay fever is correct it will throw a new light on the whole problem 

 and bring it into line with well-known cases of plant-dermatitis which cover quite a wide 

 range of plant organisms. — K. M. Wiegand. 



1083. Stuart, G. A. D., and E. J. Butler. Report of the Director. Sci. Rept. Agric. 

 Inst. Pusa 1918-19: 1-10. 1919. — A summary of the more important scientific work for the 

 year at the Pusa Institute (India). — Winfield Dudgeon. 



1084. Vernet, G. Sur les causes de la coagulation naturelle du latex d'Hevea brasiliensis. 

 [On the causes of natural coagulation of the latex of Hevea brasiliensis.] Bull. Agric. Inst. 

 Sci. Saigon 1 : 342-347. 1919. 



1085. Wall, A. The pronunciation of scientific terms in New Zealand, with special refer- 

 ence to the terms of botany. Trans, and Pror. New Zealand Inst. 51: 409-414. 1919 



