Pammel, Louis Hermann. 



A talk on weeds. Address. 



55 pp. Ames, Iowa, 1910. JO-P 185 



Ecology. 



360 pp. 17 pis. Carroll, la., 1903. C-P 185 



Lecture on pollination of flowers. 

 57 pp. Des Moines, 1892.* 



Some fungus diseases common in Iowa during the season of 1904. 

 16 pp. n. p. n. d. (1905.)* 



Some phytopatholoKical problems. Address. 



6 pp. (Delivered at 27th ann. meeting Soc. for promotion of Agric. Sci. 1906.)* 



Pammel, Louis Hermann & Lummis, G. M. 



The germination of weed seeds. 



(Proc. 24th ann. meeting of Soc. for promotion of Agric. Sci., 1903, pp. 89-100.)* 



Panchic, losif. 



Elenchus plantarum vascularium quas in Crna Gora legit. 

 J. Pancic. 



106 pp. Belgradi, 1875. 



Eine neue conifere in den ostlischen Alpen. 

 8 pp. Belgrade, 1876. 



O poreklu Zhita. (On the origin of corn.) 

 20 pp. Beoghrad, 1887. 

 (Tezhaka. Broi 6.) 



Taxilogia botanica. Diss. 



22 pp. Pestini, 1842. 



Panckow, Thomas. 



Herbarium portatile, oder behendes krauter und gewachs-buch, 

 etc. 



170 pp. 1363 pis. Berlin, [1654]. 



425 pp. 1536 pis. Colin a. d. S., 1673. 



425 pp. 1536 pis. Leipzig, 1679. 



Pantanelli, C. 



Fisiologia vegetale. 



200 pp. Milani, 1908. 



Panten, Carl. 



Die champignonzucht in ihrem ganzen umfange fiir jedermann. 

 62 pp. Leipzig, 1906. HIa-P 197 



Panten, J. 



Bau und leben der pflanzen. 



140 pp. Breslau, 1902. C-P 197 



Panzer, Georg Wolfgang Franz. 



Beytrag zur geschichte des ostindischen brodbaums. 

 45 pp. 1 pi. Niirnberg, 1783. 



Ideen zu einer kiinftigen revision dor gattungen der griiser. 

 62 pp. 6 pis. Miinchen, 1813. 



(Denkschr. k. Bayer. Akad. Wissensch. Bd. IV, 1814.) 



Observationum botanicarum specimen. 



56 pp. Norimbergae et Lipsiae, 1781. 



Paparozzi, Giuseppe. 



II "cancro del pero." (Der krebs des birnbaumes.) 

 29 pp. Roma, 1906. ED-P 213 



Pappe, K. W. L. & Rawson. R. W. 



Synopsis filicum Atricae australis. 



57 pp. Capetown, 1858.* 



38 ■ 



