3«^ 



Tliat there is no liyilnxhloiir :i< nl ;i:i> <;iiii.<l .iv.i witii tlie nitric nxi.ic i> In^jhly 

 prolcihle.'liolh fruni the fact that its presence is not iletectetl by solntioni* of silver 

 nitrate, and that the n suits olitained l»y colleetinj; the ga*j over 10 per cent hy«lro- 

 chlorie aeid are lower than when the <i:'s is eolh-ifed over a satnratod soda srdution, 

 and do not dilier ■greatly from those olitaine<l hy eolleetinj; it over water. 



\ariatioiis of temperature between the iiitrie oxide and the surrounding water of 

 tli<- water jacket are so slight that they may safely be neglected. 



In a word, the greatest errors in the use of the .«>chnlze-Tiemaun method for esti- 

 mation (if nitric aeid arise from careless manipulation or poor reageiits rather than 

 from absorption of nitric oxide when collected over a saturated 6oluti«m of caustic 

 foda, or from difJerences of temperature which occur when the temi)erature of the 

 gas is assumed to be the same as that of the water surrounding the eudiometer of 

 the azotometer. 



The fuel value of feeding stuffs, W. O. Atwater. Ph. D. 

 (lij). 174-181). — This is a i»oimlur article on the luiictioiis of HkkI nutri- 

 ents and tlie jtotential eneigy of food rations as a means of measur- 

 ing; tlieir nutritive value, with statistics as to the comitosition and 

 ])otential energy of rations fed to cows by ditferent farmers. 



Investigations with the caxokimetek, H. B. Gibson, H. A, 

 (pp. ISl'-I'.H'). — The instrument and mctliml of work are de.scribtMl ; the 

 results jfiven of determinations of the "heats of c«»udmstion'' in cane 

 aufcar, milk sugar, dextrose, starch, mannite, stearine, fatof beef, fat of 

 slKM'p. fat i»f swine, butter fat, olive oil. and sjierm oil: and the results 

 for carl>ohydrates are compared with tht»se found by Berthelot and 

 by Stohmann. 



MeTEOUOLO(;I("AL observations, C. S. IMlLl.l'S. 1>. S. (pp. \'Xi- 

 lOO). — Urief notes <ui the weather; a sunnnary of the rainfall at 17 local- 

 ities in the State during the <> months ending October M, ISIM); and 

 a .summary of the ob.servations at the station for each month of ISJMJ. 

 The yearly summary is as follows: Pressure (iiu-hes). — Maxiumm. 

 .'iO.SJi; mininuim. LM»,;;»;: im-an. .'?0.(M. .l»r IrmprrntHre (degrees F.). — 

 Maximum. .S*.>: minimuui, — 4.»»: mean. -HJ.j;. Humidity. — Mean rela 

 tive humidity, 7S. I'reripitntion. — T<»tal (in<-hes), 4H.87: number of 

 davs on which 0.01 iiirli or luore <»f rain fell. 111. \yeuther. — Nuntber 

 of clear d;iv>;. lO.-i; niiiiiluT of fiiir <l;i\ -i. 1">'.»; nniiiber of eloud\ d;i\s. iL'l. 



Florida Station. Bulletin No. 14. July 1. 1891 pp. 42). 



Annual K'kimum. 1.s!M..I. I\ DkPass. — This is for the year ending 

 June .SO, ISIM. and inrhides general statements regarding the work of 

 the station: brief notes on peaches, pears. .Iap:ine.<e i>lums. grapes, 

 api>les, tlie .l:i]»anese persimunui or kaki. wateruu^lons, muskmelons. 

 .strawberries, <abbag«'s, beets, eggplants, the MeXeil p«'a, oat.s, and 

 grasses: accounts of the hor.se.s, cows. lUgs. and chi<kens kept at the 

 stati(Ui: tinancial .statement: reimrts of the work in chemistry, by J. M. 

 Pickell, Ph. D. and J, J. Karle, B. A.; notes <ui iu.secticides, with fmiuu 

 las; and a brief report on pineai>ples, by L. C. Washburn, M. D., 

 superintendent of the substation at Fort Myers. 



