The Freezer People

The 6.7 cu.ft. Model 8107 with optionaltemperature recorder. Only 48" widewith a low profile for convenient ac-cess to the versatile inventory system.

The freezer yWuve beenm waiflng for.

Here's a compact 6.7 cu.ft. bio-freezer de-signed to fit into any lab. With a purchaseprice and low operating costs ideal for anylab budget.The design operating temperature of-86° C is guaranteed in a + 850 F ambient. . . no other manufacturer will make thatguarantee. Our rugged steel cabinet isbonded to an embossed aluminum Inner linerwith a minimum 5" foamed-in-place urethaneinsulation. And the all-Freon cascade refrig-eration system is designed for field service

with easy maintenance access.

The Alarm System is standard. Forma's Auto-Charge Performance Monitor with self-charging nickel cadmium batteries and analarm ringback provides immediate audibleand visual warning during power failure/over-temp conditions.The 6.7 cu.ft. Model 8107. The freezer you'vebeen waiting for. Also available in a bloodbank red cell design. From Forma ... theFreezer People.

Fq Forrna Scientifich BOX 649 * MARIETTA, OHIO 45750 * AREA CODE 614/3734763

6 TELEX 24-5394 * TOLL FREE IN-WATS SERVICE 800-848-9730 AREAS 1. 2 & 3

0 --- I--~~~~~~~~~~~~~~~~~~~~.

12 NOVEMBER 197/v-. ) 3 - 't6* Circle No. 9 on Readers' Service Card

M 0---

673

I,,.,* I , .

tS

L, VF g<,46-: , -, 60+4ij

..~~~~~~~~~

Introducing the NV-8030. Panasonic's new time lapse VTR.It lets you keep an eye on everything from microorganisms,to supernovas, to your own laboratory door-the wayyoureyes can't! For up to 108 hours, 72 hours, 18 hours,9 hours or 1 hour at normal speed. On one reel of tape.

With an optional microscope adapter, you can use theNV-8030 to record things too small for your eyes to see. Soeven when you're not around to witness cell division,the NV-8030 will be.And if you happen to fall asleep during the next lunar

eclipse-don't get up. Because, with an optional telescopeadapter, you can use the NV-8030 for time lapse recordingsof the planets, the stars or virtually anything that movesthrough space.You can also monitor anything or anyone that moves

through your lab. Because, when used with Panasonicsequential switchers (optional), the NV-8030 will acceptinputs from 6 to 10 different camera locations. That meansyou can keep an eye on your experiments, your equipmentand people. All at the same time.

In playback, the NV-8030 can stop the moon dead in itsorbit, or a red blood cell dead in its plasma. Push the one

field button for a perfect still-frame and perfect stop-action.So whatever you have that needs watching, get the

high quality of film as well as the low cost and instantresults of tape, with the NV-8030.

-------- -- ---vIPanasonic Company, Video Systems Division, Dept. 402One Panasonic Way, Secaucus, N.J. 07094.

I E Send me technical information on the NV-8030. IEl Have a Panasonic video specialist call to demonstrate how the I

NV-8030 can be used in my company. l

,N__ame TitleI Name Please Print

CompanyI Address _ I

City State ZipArea Code Phone Number I

IPanasonic® ljust slightly ahead of our time. I

In Canada, contact Panasonic Video Systems Department, 40 Ronson Drive. Rexdate. Ontario MgW 185.

Circle No. 125 on Readers' Service Card

. I 1- .: , 41

-

. - I - " ,

4W .

.., I -, . 1. - 41

, I 4 I :1 -. .

It t, 4

AL~~~~~~~~~~~~~~0

Do it all witha UA-5v

Primril, theUA- .isa.snsiivean

l~~~~~cnetoa an hig pefrac C

DoifI yo'e lf sintst t'mc moe1

n0Wo[g~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~1 'a1ds ; 1

~~thanthat - i~~~~~~t's77the7key p rtoanintgaesystem, able to perform many functios i.n .

tPriarily, the UA-5 is a sensitive and/ ~~~ 5 ~stable multi-wavelength detector for/ n * > ~~conventional and high performance LC.

all-r Butifcyou'rea lifescientist,it's muchmorethan sigE-pu sthan that n itshekeypartofan integrated

you can alway system, abletoperformemany functionsinX ,s,^ ^ ~~your lab.> ~~~~~Even if you don't need the other applications

_ i ~~~today, remember a UA-5 is still the bestall-around column monitor, and it costs no more

than single-purpose LC monitors. If you have a UA-5 now,you can always add the electrophoresis and otheraccessories when you need them. Send for an ISCOcatalog, and see how you can do it all. We'll evenenclose a DO IT ALL button to give your lab coatsome class.

682 QdT1LCkTd-T I t %TSCIENCE, VOL. 194IAA

Research Steroids?1 Achec owi\,thuse first I

Makor Chemicals is now manufacturingand distributing all the Research Steroids 4 _previously produced by Ikapharm Ltd.More than 400 of them.

* Mak~cior CemnicdsLda leader in the fieldof highly purified biochemicalsand chemicals.

RESEARCH ANTIBIOTICSCANNABI NOI DS HelIma-the largest assortment of highest

IENYMES precision glass and quartz cells.IN Standard- Flow-through Constant-temperaturett)9XlIN Anaerobic - Special Designs

L-ECTI NS Also available-ULTRAVIOLET LIGHT SOURCESPURINES ~~Deuterium Lamps - Mercury Vapor LampsPURINES ~~~~Hollow Cathode Lamps ' Power Supplies

and, of course, STEROIDS! Wrt!o ltrtrI I t I I E LL MK~~~** **4j Writelfor literaturelrM l BMAKOR CHEMICALS LTD. Borough Hall Station

IIEE[1 MAKOR CHEMICALS LTD. IC E LL~~~I.IS. IN C Jamaica, New York 11424Ii. 1J P.O.B. 6570, Jerusalem 91060, Israel J i Phone (212) 544-9534

Circle No. 13 on Readers' Service Card Circle No. 10 on Readers' Service Card

Kidney: Glemerulus.

While it may appear to the naked eye that all dual observationmicroscopes are alike, they're not: Olymipus makes the difference.-The BH-DO proves it: all the precision and qualityfeatures you

need are in an easy to use comfortable unit. A joy stick operated,illuminated arrowhead pin points specimen detail a lever-opprted _yellow and green filters swing in to enhance the. poiniter contrastThe dual observation assembly rotates through 36fIndividualfousing and interpupillary adjustments are on both tubes.

Combining the BH-DO with the Olympus PM-10c"rameaprvides a.permanent photomicrographic record of your observations.-So whether your needs are in the lab or in the classr-oom, theOlympus BH DO microscope is made for you.

Write: Olympus Corporation of America. 2 Nevada DrP.New Hyde Park, N.Y. 11040. In Canada: W. CarsonCo., Ltd.,321 Don Park Rd., Markham, Ontario, L3R, C2. Canada.

ONE SI-NGLE STARTLV4ING~OBSERAIO N H UBJCOF DUAL OBSERVTOMAAICROSCOE:OYPS

... ... ...

OLYMPUS

12~~~~~~~~~~~~~~~ 0 NOEMER97 Circle No.0 1094000on000Reders'0 Sric Card 7510 lf. ....f

m

12 NOVEMBER 1976 Circle No. 109 on Readers' Service Card 751

It's just as if your laboratory and theHoltzman Co. were neighbors. When youorder from us, your rats arrive prompt-ly.. . are subjected to less stress intransit ... arrive fresher and ready for usesooner.

Safe arrival and satisfactory quality areguaranteed. And if your rats aren't deliv-ered promptly, just have someone whoknows your P.O. number call Holtzmancollect. We'll activate a computer searchand within an hour, we'll have satisfactorynews for you.In addition to sending you a superior rat,we're trying to assure you of superior deliv-ery, too. Try us and see.

we keep a closetaill on

computerized routing helps assuretimely delivery

HOLTZMAN P.O. Box 4068COMPANY Madison, WI 53711

Phone 1-608-271-6441Circle No. 156 on Readers' Service Card

Circle No. 158 on Readers' Service Card

1976 AAAS-WESTINGHOUSESCIENCE WRITING AWARDS

Three $1000 awards for science writing in:

Newspapers with over 100,000 daily circulation;

Newspapers with under 100,000 circulation(daily or weekly);

General circulation magazines.

Material must have been published between1 November 1975 and 31 October 1976.

For entry blanks and more details contact:

Grayce A. FingerAAAS

Dept. 76W1515 Massachusetts Ave., NW

Washington, D.C. 20005(202-467-4483).

SCIENCE, VOL. 194