]86 



MacDougal, Daniel Trembly. The 

 delta 111 the Rio Colorado. New York 

 N.Y. Bull. Amer. Geog. See. 38 I'JOCd- 

 16 whh text fig. illus. 1 fold. map). 

 [8000 ill]. 52590 



Across Pai)agueria. New 



York N.Y. Bull. Amer. Geog. See. 40 

 1908 (705-725 with maps text fig.). 

 [8000 :;(■<;/]. 52591 



Problems of tlie desert. 



Plant World Tucson Ariz. 11 1908 (28- 

 39 with map). [32C0]. 52592 



First crosses breeding 



true. Plant AVorld Tucson Ariz. 11 



1908 (42). [3550]. 52593 



The poisonous action of 



loco-weed and ladies' slipper. Plant 

 World Tucson Ariz. 11 1908 (84-86 with 

 illus.). [3120]. 52594 



Across Papagueria. Plant 



World Tucson Ariz. 11 1908 (93-99, 123- 

 131 with pi. illus. map). [3200 

 SOOO gigl]. 52595 



The course of the vegetative 



seasons in southern Arizona. Plant 

 World Tucson Ariz. 11 1908 (189-201 

 217-231 237-249 201-270 with map 

 iUus. text fig.). [3550 8000 jyi]. 52596 



■ Darwinism and experimen- 

 tation in botany. Plant World Tucson 

 Ariz. 12 1909 0-37-101 121-127). [4400]. 



52597 



Heredity, and the origin of 



species. [Lecture delivered before the 

 Barnard I'otanical Clulj, Columbia 

 University, December 18, 1905. From 

 the .Monist for January, 1906. Re- 

 printed Ijy permission of the Open Court 

 Publishing Company, with corrections by 

 the author.] Washington D.C. Smith- 

 sonian Inst. Rep. 1908 1909 (505-523 

 with 1 pi. text fig.). [4400]. 52598 



Botanical features of North 



American deserts. Washington D.C. 

 (Carnegie Institution) [Publication No. 

 99] 1908 (2 Z. -f 111 with pi. maps 

 tables). 25.5 cm. [3200 £000 cji]. 



52590 



MacDougall, R. Stewart. Gall flies 



on the oak. J. Board Agric. London 16 



1909 (293-294 3 ligs.). [4300 5400]. 



52(;oo 



The yellow-horned or ];lum 



fruit >awfiy (lloploccuniia fidricor)ii8, 

 Klug. ) J. Board Agric. London 16 1909 

 (385-3f<7 witii fig.). [1100 5100). 



52001 



MacDougall, R. Stewart. The genus 

 Chci-mcs in its relation to forestrv. J. 

 Board Agric. London 16 1909 (441-453 

 2 pi. and figs.) [4100]. 52602 



MacEwan, Peter und Ferrtster, 



George P. Verschiedenheiten in der 

 Wirksauikeit gewisser narkotischer 

 Drogen. Wien Zs. Allg. Oest. Apoth. 

 A'er. 47 1909 (313-315); Pharmaz. 

 Post Wien 42 1909 (466-4G7). [3120 

 5490]. 52603 



MacGillaviy, Donald. Eeu eventueele 

 bestrijding van de rupsenplaag in de 

 robusta-koffie. [Un moyen possible de 

 combattre le fleau des chenilles sur le 

 CotTea robusla.'] Tevsmannia Batavia 

 20"l909 (779). [4350' 5100]. 52604 



McGregor, Ernest A. Two new 

 sjiermatophytes from California. New 

 York N.Y. Bull. Torrey Bot. CI. 36 1909 

 (G05-G09 with illus. text fig.). [5400 

 8000 gil 52605 



Mcintosh, — \of Perth]. [Notes on 

 fun^i.] Perth Trans. Soc. N. Sc. 5 1909 

 (xxi-xxiv). [8000 de]. 52606 



Mackenzie, Kenneth Kent. Mr. 

 Heller's 1908 Ca?rx collection. Muhlen- 

 bergia Reno Xev. 5 1909 (53-58). [6000 

 8000 gi]. 52607 



Notes on Care.v — 5. New 



York N.Y. Bull. Torrev Bot. CL 36 

 1909 (477-484). [6000 " 8000 g]. 



52608 



Notes on Sngittaria. 



Torrcva New York N.Y. 9 1909 (30-32). 

 [6000]. 52609 



[Mackevlc, v.] MauKCBiiHi., B. IlpH- 



'iiiiiij i)ii;),iHMi!i oc{!Hiii'(i II Beceiiiieii 

 ;tl)CBfciiiiu. [Die Ursachen der Ver- 

 sc-hiedenheit des Herbst- und Friihlings- 

 Holzes.] Lesoprom. vest. Moskva 10 

 1908 (249-251 257-260 265-268 273- 

 27(i). [3010 2450]. 52610 



Macku, Jan. Piispevek ku pozndni 

 Basidiomycetu a Ascomycetu morav- 

 skych. [Beitrag zur Kenntnis.s der 

 Basidio- und Ascomyceten Miilirens.] 

 Prossnitz V(\stn. KI. Pfir. 1909 (145- 

 161 niit2TaL). [7700 8000 <//,•]. 



52611 



McLaclilan, .\rgyle r. Cook, (). F. 



MacMillan, Iirugh] F[raser]. Flower- 

 ing of I )eiiilrui-(ilaiiiu» g'lganlena, the 

 "Giant HamlnK)." Cevlon Aim. R. Bot. 

 Card. 4 part IV 1908 (123-129 with 



