944 



SCIENCE 



[N. S. Vol. XLII. No. 1096 



operation in Matters Chemieal," before a large 

 audience. On Thursday a complimentary excur- 

 sion was made on a specially chartered steamer on 

 Puget Sound and refreshments were served to 

 members and guests present. Thursday evening a 

 subscription banquet closed the regular meeting 

 of the society, although other excursions were en- 

 joyed on Friday. 



On Friday, September 3, a portion of the mem- 

 bers were taken by private yachts on Puget Sound 

 to Tacoma and visited plants there, while a party 

 of twenty-nine took automobiles from Tacoma to 

 Mt. Eainier National Park, over one of the most 

 beautiful drives in America. Saturday spent in 

 Portland as the guests of the Oregon Section. 

 The members were met at the train at 8 a.m. 

 and were taken direct to one of Portland's hotels, 

 where a complimentary breakfast was served. By 

 automobile the members then visited either the new 

 Gas Plant of the city or the Willamette Paper 

 Company works at Oregon City. Following these 

 visits, the members met for a complimentary 

 luncheon at Portland's most beautiful Country 

 Club. After lunch the members were shown 

 around Portland by automobile and met at 4 

 o'clock to listen to a lecture by Messrs. Burger 

 and Jones, illustrated by colored photography lan- 

 tern slides showing scenes along the Columbia 

 Eiver and views of Mt. Hood and Mt. St. Helens. 

 This set of views is probably the most remarkable 

 and beautiful chemical reproductions ■ of nature 

 that have ever been shown before an audience. 

 The day was thoroughly enjoyed by members pres- 

 ent. On September 5, twenty-five members who 

 had come through together to San Francisco were 

 entertained at dinner at Techau Tavern by the 

 members of the California Section in the usual 

 hospitable manner so characteristic of California 

 chemists. The registration at Seattle showed the 

 presence of 106 members of the society and 119 



The following papers being a continuation of 

 series of papers first presented at New Orleans on 

 the Chemists' Contributions to Industry, were 

 printed in the November Journal of Industrial 

 and Engineering Chemistry: 



The Contributions of the Chemist to the Naval 



Stores Industry: John E. Teeple. 

 Contributions of the Chemist to the Iron and Steel 



Industry: Geokge W. Sakqent. 

 Contriiutions of the Chemist to the Iron and Steel 



Industry: A. S. Cushman. 

 Contributions of the Chemist to the Art of Soap 



Making: M. H. Ittner. 



Contributions of the Chemist to the Perfumery In- 

 dustry: E. T. Beiser. 

 Contributions of the Chemist to the Lead Indus- 

 try: G. W. Thompson. 

 Contributions of the Chemist to the Paint and 



Var7iish Industry: Maximillian Toch. 

 Contribution of the Chemist to the Photographic 



Industry: Francis C. Frasy. 

 Contributions of the Chemist to the Pharmaceutical 



Products Industry: Frank E. Eldred. 

 Contributions of the Chemist to the Hardwood Dis- 

 tillation Industry: S. W. Katzenstein. 

 Also the following papers comprising a sym- 

 posium on the Chemistry of Wood Waste were 

 printed in the November Journal of Industrial 

 and Engineering Chemistry: 



Chemical Engineering of the Hardwood Distilla- 

 tion Industry: James E. Withrow. 

 What Chemistry h<is done to Aid the Utilization 



of Wood: S. P. Agree. 

 The Tannin Content of Pacific Coast Conifers: H. 

 K. Benson and T. G. Thompson. 

 A study of the tannin content of hemlock, spruce 

 and Douglas fir from western Washington was 

 made. Local tanneries use the bark of the west- 

 ern hemlock, which contains above 15 per cent, 

 tannin in commercial practise. Prom sawmills 

 operating under average conditions bark, slabs 

 and sawdust from cross-cut saws were obtained. 

 These were sampled, extracted and analyzed ac- 

 cording to the Ofi&cial Method of the Leather 

 Chemists' Association. The results of the analysis 

 for tannin reported on a dry basis are as follows: 

 Per Cent. Tannin 



Fir bark 6.34 



Fir slab 5.92 



Fir sawdust 1.06 



Fir cambium layer 9.92 



Spruce bark 5.88 



Spruce slab 3.69 



Inasmuch as the tannin content of the fir slab 

 approaches that of chestnut wood (6.62 per cent.) 

 and owing to the low cost of fir slabs (less than 

 $2 per cord), it is believed that the extraction of 

 tannin from fir slabs is a commercial possibility. 

 A local tannery used fir extract in the tanning of 

 sheep-skin and reported good quality and a color 

 similar to that obtained from oak tannin. 

 Yields of By-products from. Destructive Distilla- 

 tion of Some Western Conifers: H. K. Benson 

 AND Marc Darrin. 



The following classes of woods were treated at 

 the Forest Service distillation plant at Seattle :i 

 1 For design see Jour. Ind. Eng. Chemistry, Vol. 

 5, No. 11. 



