

It T1IK Ah\ OF SOU 



llucrfai.o Basin in Southm 



respecting th Origit an Loe*v 



. . 



- . -,:. 



,. 



AAloyy. 



lir. I. . 



;;.., 



; Jai . .- . 



: - Ma : \. \- > 



was rwuded ox. 

 rt of the D. 



->ne,l t.. 



ill the vacancy 

 vrnGoode. Ir. 



Howard spoke 4 of Species !> 



Aracv ofMan. with SIM 

 He sbowd that natural spread was for 

 the role, but that with the improvement of .... 

 mereial intercourse between nations the agen 

 man has become predominating. II- ipoJM >! t he 

 international introduction of useful plants from 

 foreign countries, and of the oooMfooa] Lntrodno- 

 lowering species which escape fan col- 

 l,vat -ds. The intentional in- 



wild animals has generally been 

 : . . Intro In km of the 



Banish sparrow, of the Indian mongoose in 1 

 Bale.. v mg foxes from Australia into Cali- 



fornia, of the gTPsy moth from Kurope into North 

 America. Accidental introduction- 1. 



jiowcrful m extendin- the range of species 

 and in changing the character of the plants and 

 animals of given regions than intentional introduc- 

 tions. The era of accidental importations began 

 the In-ginning of commerce and has grown 

 with the growth of commerce. The vast extensions 

 J trade of recent years, every im- 

 provement in rapidity of travel and in safety of 

 carriage of goods of "all kinds, have increased the 

 opportunities of accidental Introductions, until at 

 resent time there is hardly a civilixed country 

 firmly established and flourishing 

 within it- territory hundreds of species of animals 

 and plant- of foreign origin, the time and mean- of 

 introduction of many of which can not be exactly 

 traced, while of others even the original home ,-.-,n 

 not be ascertained, so widespread has their distri- 

 bution become. 



The following-named papers were read and di- 

 cossed before this section: "<>n the Relationships 

 of the Nematognaths," by Theodore (iill : "On a 

 Collection of Cephalopoda from the Alba- 

 Expedition," by William K. lloyle-. -On the Char- 

 acters of the P.rain- of Nematognaths and Plecto- 

 spondyls," bv Benjamin T. Kingsbury : The Insect 

 Fauna of Genoa giganteus," by HOOT <;. Hub- 

 bard . - -styles of the" Plumularid.-v," by 

 Charles C. Nuf ^tudy of the hevelopment 

 raateriaerechU" and u Brood XVI of Cicada 

 Web 



and Harvard F.m- 

 < 'liar'.--- S. Minot ; 

 -Geological Distribution of "the Golden Warl 

 Oberholser; "On the Malod 

 Cam- is pvirma, tt by Walter f, 



rows ;** Remarks on t he Distribution of Seal.- In- 



.." T< mw rsr 



tun- Kxneriments as affecting the K.eeived Ideas 

 on the Hibernation ..f Injurious Insect*," and " Ad- 

 dition*! owrvation* on the Parasites of o 

 leocosti^i. d 0. Qowai .uiters 



. j S \ i .- Spedei ol 

 Ceres. . ;iliam II. ,\-hn.. i I; M Tb i 



Twig Borer (Anarsia lim-atei L 



Marlett : - A Successful Lantern Trap" i 

 nacular Names of Insects," by Charles P. Gilh-tt : 

 "On the Preparation and Use* of Arsenat of Lead 

 as an Insecticide," bv Philip II. Rolfs: -Insect* of 

 by Francis M. Webster and c. \v. Mal- 

 ii of Phena-.-lus primjevus, 

 the Most Primitive Cngulate." "Ilomologies and 



Nomenclature of the Klements of the Molar Teeth." 



ition ami Variation, and the Limits of 



u." and "Skeletons ami lie>t.ra- 



. ICammalia,* 1 i-\ ii born. 



Also a joint ses-i'-n andQwai held 



ISfiOD was held on " <),- 

 ,." in which llenn I'. tabon and 

 niton were the chief participant-. 

 /.//. The pn siding olli.-er ,,f t!, 



Ithara. M. Y, i '.riinental 



.Morpholo- points ,,f 



different aathoritiei during the last 



one hundred and fif' 'id claimed that the 



leading idea in the study of morphology held ly 



aataorities during tnis perioa was t'he imlu : - 



tive method for the |nir|Nse of disc,-riiiiiK' funda- 

 niental principles and law-, not Dimply theestaltlish- 

 meiit of individual fai-ls. whi< i, 



acteristic <>f the earlier period when uie dogma of 



prevailed. 



i.-d aii<l t! -radiially 



\\orke<l his way up to the propo-jti, . MMT 



a new period in the study of comparative 

 jiholoi:y had m it been entered on. Then p. 

 direct tO t)tt Subject of ln> adilre-N h,. r.'f.-n 



.mental morphology as including in it- I 

 est sense the domain of cellular morpholo^ 



iianges resulting from the directive or 

 forces accompanying growth, but it wa- raii 



experimental morphology as applied to the inter- 

 pretation of tin- modes of progress followed l-y 

 members and organs in attaining their mr|'ii 



individuality in the tracine; of homolo^ie>. in tin- 

 relation of men; iated by anta.L- 

 correl pi-ndenre iv of 

 function in homologous members on <\ 

 internal forces, as w-ll as the course which deter- 

 mines the character of certain paternal or maternal 

 structures, that he di>cus-,ed, and perhap- 

 IIP. iv r.-trictedly the experimental eviden.-e- touch- 

 ing the relation of the members of the plant, a- 

 expressed in the metHmorpho-js theory of the ideal- 

 istic morphology, which subject ti th.n 

 di-<-u- illy and elaborately, giving numei- 

 ous illustrations to emphasi/.e his idea-, taken from 

 ' investigations by prominent Ix.tanists pub- 

 li-hed within the last ten \ 



The following-named paper- were read ami 

 cussed before the section: "Change- during Win- 

 ter in the 1'erithecia and Asoospores of Certain 

 j.lieji- " and " The Kry-iphea- of North Amer- 

 ica: A Preliminary Account of the Hi-tributi.n of 

 the Specie-." by "Benjamin T. (iallowa 

 Contributions to the Lii, lli-tory of Bsxnafc 



. 

 ''by Albert I-'. Woods: - WakkerV Hyacinth 



Bacterium." Description of r,acillu> pha 



Species, with Some Ifem. 



ami "On tin- Nat:. 



duced by Fungi and with Special I; 



enceto'that pr-du.ed by liacillus solanacearum." 



by Krwin F. Smith :" Note- ,n Jamaica," by 



DoUg ipbell ; " No!e- on S 



.lid t oinpari-oii of the Pollen of 

 Pinu- .nd Peltandra." by George I''. Atkin- 



Toductive Ortran- aiid l-jnbryology of 

 Drosc 



Seed Coat's" by .Julius O. Schlotten 

 " Morphology of the Flower of A-<-iepias Cornuti." 



.: Bf I'i. l..'l._ .pon the i 



ress of the Botanical Survey of NeVjraska." 

 the Trees receding from toe Nebraska Pla 

 and ' risticfl of 1 U Vegeta- 



tion of Western Nebra-ka," by Char:-- !!. P.essey; 

 -on the Distribution of Starch in Woody Stems," 

 by Bohumil Shimek ; "Mechanism of Root Curva- 



