No. 1, Mat, 1921] PATHOLOGY 81 



MISCELLANEOUS (COGNATE RESEARCHES, TECHNIQUE, ETC.) 



571. Blair, R. J. Wood destroying fungi in pulp and paper mill roofs. [Abstract.] Phy- 

 topath. 10: 61. 1920. 



572. Boas, I. H. The preservation of timber in structures. Australian Forest. Jour. 3: 

 209-212. 1920.— The decay of timber, preservative treatment, and the necessity for proper 

 sanitation in yards are briefly discussed. — C. F. Korstian. 



573. Hartley, Carl. Abnormal growth induced by chloral hydrate soil treatment. Phy- 

 topath. 10: 334-335. 1 fig. 1920.— The addition of small amounts of chloral hydrate to sandy 

 soil resulted in very abnormal growth of seedlings of Pinus ponderosa. The plants during 

 their first few weeks are distinctly larger than normal, and the cotyledons, and in some cases 

 also the first leaves formed, were attached to each other to form sheaths. The same phe- 

 nomenon, but to a much less marked degree, has been observed in pine seedlings in autoclaved 

 mixtures of soil and compost. — Carl Hartley. 



574. HuNTOON, F. A., P. Masucci, and Edith Hamun. Antibody studies. Part 3. [A 

 preliminary report on the chemical nature of bacterial antibodies.] Jour. Amer. Chem. Soc. 42 : 

 2654-2661. 1920. — The antibody molecules are of large size and of colloidal nature. They are 

 unaffected by the enzyme trypsin. They are not precipitated by solutions containing little 

 or no electrolyte. Antibodies are not soluble in ether, nor are they precipitated by a short 

 exposure to 30 per cent NaCl. Dilute alkalies or dilute acids do not injure them. Tem- 

 peratures as high as 60°C. do not injure them, but they are altered by higher temperatures. — 

 J. M. Brannon. 



575. KoTiLA, J. E. Leaf hoppers and hopperburn of potato leaves. [Abstract.] Phyto- 

 path. 10:61-62. 1920. 



576. Leefmans, S. Kenmerken van bliksemslag bij klappers. [Symptoms of lightning in 

 coconut trees.] In De Klappertor. [The coconut beetle.] Mededeel. Lab. Plantenz. Dept. 

 Landb. Nijv. en Handel [Buitenzorg] 41: 46-47. PI. 15. 1920.— Three groups of lightning- 

 injured coconut palms are described, one illustrated by a photograph, to distinguish between 

 lightning injury and beetle injury. One of the groups included 12 trees. The injury involved 

 the sharp drooping of the older leaves, excentric injury to the top, apparently burned lesions 

 with a "scorched" odor, scars running down the trunk and in some cases gum exudation 

 from splits in the lower part of the trunk. The younger leaves which did not immediately 

 droop were apparently scorched at their bases. Natives testified that the trees had been 

 struck by lightning. — Carl Hartley. 



577. Lees, A. H. Big bud. Ann. Rept. Agric. and Hort. Res. Sta. Univ. Bristol 1919: 

 50-56. 1919. — Big bud of currant is caused by a mite which lives in the interior of the buds. 

 During April, May, and June it is migrating to new buds. Boskoop Giant, introduced as a 

 variety immune to big bud, has proved to be one of the most susceptible. "French" has had 

 a somewhat similar history. Seabrook's Black remains relatively free from big bud in Chelms- 

 ford but is affected at Long Ashton. Apparent immunity in Chelmsford is really extreme 

 susceptibility which results in early death of terminal bud and its replacement by a lateral 

 bud, Chelmsford has a dry summer. Long Ashton a moist one. This is thought to affect the 

 growth of the plants suflBciently to account for the differences noted. — D. Reddick. 



578. RuMBOLD, Caroline. Giving medicine to trees. Sci. Amer. Monthly 2: 114r-116. 

 6 fig. 1920. [Reprinted from Amer. Forestry 26:359-362. 1920.]— See Bot. Absts. 6, 

 Entry 1284. 



579. Rutgers, A. A. L. Bliksemschade bij Hevea. [Lightning injury in Hevea.j Mede- 

 deel. Alg. Proefsta. A. V. R. O. S. [Medan, Sumatra] Rubberserie 18. 1919.— Reprinted from 

 the Arch. Rubbercult. 3: 163-171. 1919. 



