152 INTERNATIONAL DIRECTORY. [SWEDEN. 
Petersson, Dr. Valfrid, Pract. Geologist, Drottninggatan 40, Stockholm. 
Chem., Petr., Min., Mining. 
Petrini, Dr. Henrik, Fellow K. Univ., Upsala. Meek. 
Pettersson, Fredr., Gardener R. Univ., Upsala. Hort. 
Pettersson, Hj., Ph. Cand., Vestervik. Dot. C. of Swedish Myx- 
omycetes. Wish to make exchanges or to.buy coll. ofMyxomycetes. 
C. of Swedish Rubi for ex.* 
Pettersson, J. M., Teacher Publ. Coll. "Nya Elementarskolan," Stock- 
holm. Bot. C. 
Pettersson, Dr. Otto, Prof. High School, Stockholm. Phys. Chem. r 
Hydrogr. 
Pfannenstiel, Dr. Ernst, Fellow R. Univ., Upsala. Math. 
Pfannenstill, Dr. S. A., Fellow R. Carol. Med. Surg. Inst., Stockholm. 
Phragmen, E., Prof. d'Analyse a 1'Univ., Sec. de la redaction des Acta 
Mathematical,, Stockholm. Math.* 
Phragmen, Dr. L. J., Rector Publ. Coll., Orebro. Math. 
Pihl, A., Direktor, Stockholm. Bot., Hort* 
Porat, Dr. C. O., Teacher Publ. Coll., Dir. Seed-contr. Office, Jonkoping. 
Phcen. Plants, Myriop. C. 
Post, Hampus von, late Dir. Chem. Station, R. High School Agric., 
Ultima, near Upsala. Glac. Geol., Agric. Chem'., Mycol. 
Post, Hans von, Min. Eng., S. Mcickleby, Degerhamn (Prov. (Hand). 
Coal Mines, Cement. 
Post, Tom von, Dir. Seed-contr. Office, Upsala. Bot. 
Psilander, Axel Aug., B.A., Asst. As-tron. Observ. R. Univ., Upsala. 
Ast. 
Quennerstedt, Prof. Dr. Aug. Wilh., Dir. Zool. Mus., R. Univ., Lund. 
Comp. Anat., In/us. 
Retzins, Dr. Gustaf, late Prof. R. Carol. Med. Surg. Inst., Stockholm. 
Anat., Histol, Anth. 
Reuterskiold, B. E. G. C., Apothecary, Drottninggatan 7lA, Stockholm. 
Pharm. Chem. 
Ribbing, Dr. Seved, Prof. R. Univ., Lund. Hygiene. 
Ringius, Dr. G. E., Teacher Publ. Coll., Ystad. Bot. C. 
Romell, Lars, Phil. Cand., Editor: " Fungi exsicc. paras Scand.," Sture- 
gatan 56, Stockholm. Mycology. Desires Fungi, sec. or living, 
from all countries.* 
Rosen, Dr. A., Lect. Publ. Coll., MalmO. Elect. 
Rosen, Dr. P. G., Prof. Topogr. Survey, Stockholm. Geod. 
Rosenberg, Dr. J. O., Prof. R. Techn. High School, Stockholm. Inorg. 
Chem. 
Rossander, Dr. C. J., late Prof. R. Carol. Med. Surg. Inst., Stockholm. 
Ophthalm. 
Roth, Dr. Alexander, Prov. Physician, Asum (Prov. Skane). Bot. 
Roth, C. D. E., Prepar. Zool. Mus. R. Univ., Lund. Ent. 
Rubenson, Prof. Dr. Robert, Dir. R. Meteo. Inst., Stockholm. Phys., 
Meteo. 
Rudelius, C., Manager Atvidaberg Copper Works, Atvidaberg (Prov. 
Ostergotland). Metal. 
Rydberg, Dr. J. R., Fellow R. Univ., Lund. Physics. 
Salin, Dr. Mauritz, Assoc. Prof. R. Carol. Med. Surg. Inst., Stockholm. 
Gyncecol. 
Samuelson, S. H., Engin., Marieberg, near Kil (Prov. Vermland). Peat. 
Samzelius, J. A. Hugo, Forstmeister, Kgl. Domiinstyrelsen, Stockholm. 
Bot., Zool., Gen. Biol., Eth., Ethnog., Ent. C. Ex* 
Sandahl, Dr. O. Th., Assoc. Prof. R. Carol. Med. Surg. Inst., Stockholm. 
Bot., Pharmacol., Ent. C. 
Sandin, Emil, Goteborg. Zool., esp. Coleopt. C. Ex. Desires Lougi- 
