478 



INDEX TO AUTHORS NAMES 



Patouillard, N. Ustulina vulgaris. 112. — 

 Madagascar fungi. 370. 



Patten, H. E., and A. J. Johnson. Hydrogen- 

 ion concentration and gelatin liquifica- 

 tion. 2873. 



Paul, Mabel S. (Johns, C. O., A. J. Finks, and 

 Mabel S. Paul) 129. 



Pavarino, G. L. Bacterial disease of orchids. 

 2724. 



Pavarino, L., and M. Turconi. Wilt of Cap- 

 sicum annuum. 2723. 



Paynter, L. Black-spot of pear in New 

 Zealand. 1188. 



Pearson, G. A. Soil nitrification and forests. 

 *1273.— Swedish forestry. 959.— Rev. of 

 Hesselman. 564. 



Pearson, R. S. Rev. of G. B. Sudworth. 574. 



Pearson, W. H. Hepatics of Wales. 1586, 

 1587. — Hepatics of Yorkshire, England. 

 1588. 



Peck, E. C. (Folm, O., and E. C. Peck) 2844. 



Peirce, G. J. Botany after the war. 1417. — 

 (Gray, John, and G. J. Peirce) 436, 

 1959. 



Pellen, C. (Bateson, W., and C. Pellen) 2157. 



Pellegrin, F. Dioscoreaceae of Paraguay. 

 1317. 



Peltier, G. L. Carnation stem-rot. 2726. — 

 Snapdragon rust in U. S. A. 2725. 



Pember, F. R. (Hartwell, B. L., and F. R 

 Pember) 139.— (Hartwell, F. R. Pember, 

 and Howard) 2922. 



Pendleton, R. L. Soil classification. 2949. 



Pennell, F. W. Plants of Southern U. S. A. 

 3014. — Scrophulariaceae of local flora, II. 

 3013. 



Percy, E. Filberts in Oregon. 2354. — Pro- 

 ductivity of prunes in Oregon. 2533. 



Perkins, Jos. A. Testing activity of antisep- 

 tics. 415. 



Perret, C. (Blanchard, E., and C. Perret) 

 2573, 2574. 



Pescott, E. E. Australian ornamentals. 

 *1772, 2279. 



Peters, J. G. Forest conservation in south- 

 ern U. S. A. 1463. 



Petri, L. Galls of Capparis by Discella. 

 1189. — Ink-disease (Blepharospora) of 

 chestnut. 2728. 



Petherbridge, F. R. Potato spraying. 113. 



Pethybridge, G. H. Disease of Thuya seed- 

 lings in Ireland. 1652, *1592— Potato 

 diseases in Ireland. *1771. 



Petri, L. Crape disease in Italy. 1190. 



Petrini, Sven. Growth measurement for 

 standing trees. 2048. 



Pettit, R. H. (Eustace, H. J., and R. H. 

 Pettit) 2332, 2632. 



Peyronel, B. Second contribution on fungi 

 of San Martino. 371. 



Pfeiffer, Th. Dicyanodiamide on plant 

 growth. (Rev. by Volhard) 1792, 2876. 



Philips, E. P. Pollination of Cyanella capen- 

 sis. 2441. 



Phillips, M. Canada balsam oil. 1729. — Oil 

 from Monarda punctata. 1728. 



Phillips, R. W. Fern prethallia. 1113, *1241. 



Phillips, V. (Sherman, H. C, J. C. Winters, 

 and V. Phillips) 2875. 



Pickering, S. Soil toxins from grass, etc. 

 1773, *2891. 



Pickett, B. S. Soil treatment of apple or- 

 chards. *863, 686. 



Piedallu, A. Sorghum in France. 907. Sweet 

 sorghums. 200. 



Pierre, H. Ru^sula olivacea. 372. 



Pierre, M. H. Rubefaction of face due to 

 eating Coprinus atramentarius. 373. 



Pile, Eleanore. (Hulton-Frankel, Flor., 

 Helene Barber, and Eleanore Pile) 440. 



Pillsbury, J. P. Report North Carolina Di- 

 visions of Horticulture, 1919. 2356. 



Piper, C. V. New Pacific Coast plants, 

 U. S. A. 1833. 



Pitt, F. (Haviland, M. D., and F. Pitt) 2137. 



Plaisance, G. P. (Dox, A. W., and Plaisance) 

 1719. 



Plate, L. Inheritance in mice. 658. 



Plat on, B. (Akerman, A., H. Johnasson, and 

 B. Platon) 1380, 2936. 



Pleijel, C. New Valeriana hybrid. 1834. 



Plenderleith, J. W. Alkaloids precipitated 

 by liquorice. 839. 



Blough, H. H. Arrangement of genes. 659. 



Plymen, F. J., and D. V. Bol. Nitrogenous 

 manures for black cotton soil of India. 

 2938. 



Poisson, J. Paulownia imperialis in France. 

 1549. 



Polak's Frutal Works. Peppermint in Hol- 

 land. 1688, *2390. 



Pole Evans, I. B. Report, Botany Division, 

 South Africa, 1917-18. 2729. 



Pole Evans, I. B., and A. M. Bottomley. 

 Diplocystis and Broomeia. 2496. 



Pole Evans, I. B., and K. Lansdell. Weeds 

 of South Africa, Opuntia imbricata. 

 *1394.— Weeds of South Africa, Altern- 

 anthera. *1395.— Weeds of South Africa, 

 Xanthium. *1396— Weeds of South Af- 

 rica, Opuntia aurantica. *1397. 



