MEMOKTAL OF OEOROE IT. WILLIAMS. 437 



ability as a speaker brouglit liim into synij^atliy witli liis hearers and 

 made it possible to interest tlieni in tlie more vital problems of bis chosen 

 science. Several addresses and popular articles of this nature were pre- 

 pared, which have done much to bring before those not jiarticularly 

 trained in petrography a knowledge of its aims and methods. As one of 

 the j)ioneei*s in American petrograi)hy, he has done as much as any one 

 to advance its claims. His many contril)utions to scientific literature, 

 his success as a teacher, and his ability on the lecture platform, have 

 been among the most potent inliuences in making the subject of micro- 

 scopical petrography one of the most popular branches of geolog>^ in 

 America at the present time. An address was delivered before the Johns 

 Hopkins University two years ago, on Commemoration Day, upon "A 

 Univei*sity and its Environment," in which some of tlie wider n])[)lica- 

 tions of geology were forcefully i)resented. 



In the broader relations of life, outside the sphere of investigation and 

 instruction to which the chief energies of Professor Williams were de- 

 voted, he was always a positive force. The interests of the university, 

 which he served during a })eriod of nearly twelve years, were ever before 

 him, and, whenevcn* the opportunity offered, he sought its advancement 

 with a loyalty which was cordially appreciated by all friends of tlie in- 

 stitution. 



As a man Professor Williams was a staunch and loyal friend, with a 

 generosity of nature which deeply endeared him to those with whom he 

 came in close personal relations. It was a })leasure to him when his 

 services could in any way be of benefit to those about him. 



His untimely death is an irreparable loss to the science which he had 

 done so much to advance, to the university in which he hold a i)lace of 

 such j^rominence, and to the wide circle of friends which he had drawn 

 about him. 



HII5Lr()(;ilAIMIV 



Tlio Williams family, tracing: the descendants of Tiioma.s Williams, of Roxl)nry, 

 Ma.'^H. : Xi'ir l\ii)jliiii(l Ifisloriral lliffixltiv, ISHO, [litjtrlnli'd for prinitrdislrihiilioii.] 



(ilaiikoplianj^t'stcinc ans Xonl-Italien : Xmcs Jahrhiirli jTir Mi,i., tic, 1SS2, vol. ii, 

 p. 202. 



Die Eniptiv^stoine der Goirond von Trvlx'rir in) ScliwarzwaM. Inaumiral disserta- 

 tion : I hid, lit'i/fifjt-Iianfl, vol. ii, Lss.'j, pp. r)sr)-(;:;4. 



TIjc .yyntlii'HJ.s of mincralH and rocks. Review of Foncinr (>t Miclicl-Lrvy's "Syn- 

 thase dcs mim'ranx ct dcH roclu's ": Am. Clnni. Jour., vol. v, |). IL'7. 



Ueiations of (•rystallo<;rai)l>y to rhcmistry : Am. Choii. Jour., vol. v, |». J(IL 



Uarit*' crystals from l>rKall», New York: Jnlms llnjik'nix I'liinrsHi/ ('irni/ors 2i), 

 >hircli, LSS4, ]K «)L 



Preliminary notice of the Kiibl)ro8 and sus.sociated lionil)lende rocks in the vicinity 

 «»f P.altimon': fhiJ, :{0, April, 1SS4, p. 7!>. 



